A person must first be born of God in order to have spiritual life, and that means to die to self that love can reign. When the physical life ends, it is the end of the opportunity for spiritual rebirth or spiritual death (Hebrews 9:27).
So, one can do this say, on there deathbed, no matter how rotten they were prior to that...? And, say you met them prior to that and did not like them very much at all, and maybe, judged them... Was that judgement correct...?
Romans 2:12 says they will perish. (God did not lie in Genesis 2:17).
It says that those who lived without law, will perish without law, and is, in connection with Romans 2:14, just two lines after it, and taken in context, (Romans 2:12-29) it is not meaning, I believe, what your trying to twist it into meaning, nice try though...
Maybe you should read "all" of it, "in context" maybe, and since were cherry picking, I have Romans 2:23-24 to say to you and those like you...
Oh and about Genesis 2:17, What does eating from the tree of the knowledge of good and evil and dying have to do with this, what is eating from the tree of the knowledge, (perhaps difference, maybe referring to judging or appointing yourself judge of good and evil), anyway, what is eating from the tree of the knowledge of good and evil to you...?
And, again, what kind of death, physical death? since we have eternal life spiritually in Christ, and we do not have to be sinless, to have it either...

I always see sin as the failure of love - where sin is always a self-centred thing that cares of it's self even at the expense of truth or others, while love is a selfless thing that cares for others even at the expense of it's own.
We agree here, which is why we are all in the "process" of being eventually perfected in love, which I do not believe fully happens till we are no longer in this world...
In the letter of 1 John this is really clear - that we love because we are born of God and the one who is born of God does not do sin. So this sin that leads to death must coincide with what St. Paul wrote in Hebrews 6:4-8. St. Peter also wrote of it in 2 Peter 2:1 - they deny The Lord who bought them, bringing swift destruction upon themselves.
Hebrews 6:4-8, Once they have been "enlightened", when does this happen, how can we know (if we are not, at least partially) still a little bit ignorant...? Repentance means what again, all sin? Quite impossible... and that is not what I think Paul meant it to mean, and I think your twisting scripture with your cherry picking again, he is not talking about sinlessness, and context again would have to be all of Hebrews 6 and even going into Hebrews 7 and on a bit, in this case...
2 Peter 2:1 is talking about false prophets, and is talking about one particular kind of sin, mainly that that leads to apostasy, and is not in any way shape or form referring to complete sinlessness... And again, I think your twisting scripture and ignoring context, which in this case, I think all of 2 Peter has to taken as a whole to correctly understand and comprehend any of it...
Context, Context, Context... Very important...
Got anything else...?
God Bless!