I think you are overplaying a bit the 1Cor5:13 passage. The context is clearly about tolerating sin within the church but not associating with those outside the c1 hurch for their sin (thus not evangelising). You cannot take the word "judge" there and make that to say that Christians cannot have a view of the actions and sin of those outside of the church.
You can have a view of pagan cultures only make sure you are not like them or do as they do. But we must not judge them that they do not follow the teachings of Jesus, since they do not know his teachings to begin with.
Christians, on the other hand, can be judged as per their conduct, since they know his teachings but are choosing to disobey.
How then do you reconcile
Romans 1? Should Christians never be a voice of what is right and good outside of the church? Is that "judging"?
Romans 1 is speaking the gospel of Jesus to everyone both Jew and Gentile, but is not peaking about judging their conduct.
We must assess their behavior to make sure we not do as they do. This is exactly what you are trying to say. You are stating that because the native people (before knowing Jesus) sinned, that it makes it alright that the European settlers did the same.
Romans 1:5-7, 16, 17 - Through him we received grace and apostleship to call all the Gentiles to the obedience that comes from faith for his name’s sake. 6 And you also are among those Gentiles who are called to belong to Jesus Christ.
7 To all in Rome who are loved by God and called to be his holy people:
Grace and peace to you from God our Father and from the Lord Jesus Christ.
16For I am not ashamed of the gospel, because it is the power of God that brings salvation to everyone who believes: first to the Jew, then to the Gentile. 17 For in the gospel the righteousness of God is revealed—a righteousness that is by faith from first to last, just as it is written: “The righteous will live by faith.
Paul is clearly speaking to Gentiles who have heard the gospel and accpeted it as the truth. But to those who hear the gospel and reject it, he writes Romans 1:18-32
Romans 1:18 - The wrath of God is being revealed from heaven against all the godlessness and wickedness of people, who suppress the truth by their wickedness,
Paul is stating that rejection of the gospel is wrong and those who do so will have no excuse since evidence of God is everywhere, even in creation.
All men must repent if they do not follow the gospel of Jesus and will be judged by God.
1 Corinthians 5:13 - God will judge those outside. “Expel the wicked person from among you.”
But this does not in any way, shape or form claim we can judge them. There is no contradiction here at all. It is the European settlers who suppressed the truth and who Romans 1 is speaking of.
Romans 1:28-31 - Furthermore, just as they did not think it worthwhile to retain the knowledge of God, so God gave them over to a depraved mind, so that they do what ought not to be done. 29 They have become filled with every kind of wickedness, evil, greed and depravity. They are full of envy, murder, strife, deceit and malice. They are gossips, 30 slanderers, God-haters, insolent, arrogant and boastful; they invent ways of doing evil; they disobey their parents; 31 they have no understanding, no fidelity, no love, no mercy.
And you approve of the european settlers who did such things.
Romans 1:32 - Although they know God’s righteous decree that those who do such things deserve death, they not only continue to do these very things but also approve of those who practice them.
Should Christians never be a voice of what is right and good outside of the church? Is that "judging"?
Yes, they should preach the truth but not use the truth to subdue people and then break God's law and steal their land. That is evil and it is exactly what the european settlers did.
Regardless, to be frank your post reads more like you yourself have a problem with racism
We should all have a problem with racism, what are you talking about?
and your own thoughts towards indigenous people that you are projecting onto entire swathes of others. You want to chastise the pioneers as their descendants being responsible for colonizing yet you then do not acknowledge the vast majority of the history of natives who in times past conquered tribe after tribe and took land.
As I have already stated, the native people did not know the teachings of Jesus. That was no excuse for the Christian settlers to do likewise, as they knew better since they understood the teachings of Jesus.
In other words, all humans are sinful and fall short of the glory of God.
Wrong. The european settler knew stealing as wrong yet did it anyways.
Luke 12:47 - The servant who knows the master’s will and does not get ready or does not do what the master wants will be beaten with many blows.
Hebrews 10:26-31 - If we deliberately keep on sinning after we have received the knowledge of the truth, no sacrifice for sins is left, 27 but only a fearful expectation of judgment and of raging fire that will consume the enemies of God. 28 Anyone who rejected the law of Moses died without mercy on the testimony of two or three witnesses. 29 How much more severely do you think someone deserves to be punished who has trampled the Son of God underfoot, who has treated as an unholy thing the blood of the covenant that sanctified them, and who has insulted the Spirit of grace? 30 For we know him who said, “It is mine to avenge; I will repay,” and again, “The Lord will judge his people.” 31 It is a dreadful thing to fall into the hands of the living God.
Hebrews 6:4-8 - It is impossible for those who have once been enlightened, who have tasted the heavenly gift, who have shared in the Holy Spirit, 5 who have tasted the goodness of the word of God and the powers of the coming age 6 and who have fallen away, to be brought back to repentance. To their loss they are crucifying the Son of God all over again and subjecting him to public disgrace. 7 Land that drinks in the rain often falling on it and that produces a crop useful to those for whom it is farmed receives the blessing of God. 8 But land that produces thorns and thistles is worthless and is in danger of being cursed. In the end it will be burned.
The danger here is the church in the west gets caught up in the reprehensible doctrine of critical race
I am not talking of race but rather believers and unbelievers. Any believer who deliberately twists the word of God and sins is committing blasphemy of the Holy Spirit, an unpardonable sin, nothing to do with race. There were many white settlers who stayed in there own country and had nothing to do with this covetous land grab (nothing to do with race).
theory which is a dangerous mix of post-modernism and a form of neo-Marxism which not only will lead to terrible times if it is embraced, but is a social justice Christians are not called to focus on. I guarantee you if we go down the path of intersectionality, victimhood and social justice we will be ushering in the new wave of Christian persecution the likes of the west has never seen before.
Rubbish. The descendants of the white settlers must repent by condemning their forefathers actions and the native man must forgive, based on the teachings of Jesus.
Romans 1 is speaking of those who know the righteousness of God (european settlers) and have given themselves over to every kind of wickedness, evil, greed, etc.
It is not referring to unbelievers (natives) who never even heard of the gospel in order to reject it.