Nope because nobody reads the Bible and comes to these conclusions on their own.
The world just isn't that innocent, sorry. These pastors are taught by Seminary/University Professors who are in on the lies, or are charged with teaching these things by those who are. And it is the SPIRIT of the message itself, the heresy from hell, that is the wolf. Even if the Pastor is not consciously aware that he is speaking lies from the pit of hell, he is sending souls to hell who believe him and die in their unbelief of the Truth.
Just as Jesus says "If you do not believe that I AM (God), you will die in your sins."
John 8:24
That's just the way it is. That's why the Bible is so adamant about us being aware of the devil's schemes. If we die in wrong-belief, we are lost. Period.
I don't think pretribulationism is a damnable heresy. It is almost entirely just misunderstanding the difference between tribulation and wrath. Most pretrib would agree we're expected to weather persecution in faith, they'll say things like "we go through tribulations but not THE tribulation". and The difference in what they understand and what I understand is really not that great, it's not a huge schism. Post trib actually has a similar misunderstanding and some funny ideas namely hyperliteral interpretation of the Day of the Lord being a single 24 hour period and they start allegorizing passages about the wrath of God trying to somehow work them into a "spiritualized" meaning for "all these things happen in 1 24 hour day" even though some like the 5th trumpet, are 5 months long. Or they will consider the trumpets and bowls to be not God's wrath but "tribulation" even though the trumpets and bowls all involve supernaturally caused events, not events caused by men (contrast with the first 5 seals which are acts of men), and Revelation 6:17 identifies that the wrath of God has come, and Revelation 15 identifies the bowls as the wrath of God explicitly. Ultimately if we used the same language and understanding of terminology I think we'd agree on 95% of the stuff in eschatology, but because there are misunderstandings, and you are right a lot of them are taught rather than read, but the terminology is inadvertently misused, and therefore can lead to erroneous doctrines, not with any ill intent, but just not understanding what they read.
None of it is simple, innocent, misunderstanding of Scripture because there is no Scripture that even APPEARS to teach Pre-Trib. And if anybody, just like myself, reads the Bible on their own without any guidance, or misdirection, from others, they do not misunderstand the difference between the Great Trib and God's Wrath.
Plenty of people conflate the two, all the time, they see the 7 seals as "judgements" by God and thus, the wrath of God, so they consider "tribulation" to be God's wrath.
It doesn't happen.
Those who believe in these things ARE TAUGHT them by mainstream popular doctrine teachers. It is the same that is taught everywhere.
A lot of it is taught but they do have their proof verses, such as Revelation 3:10, 1 Thessalonians 5:9, John 14:1-3, again, the problem is not understanding that God's wrath is retribution for the great tribulation not the great tribulation itself. They misunderstand what tribulation means, and they get to verses about God taking us to a place made for us, God keeping us from an hour of trial, and God not appointing us to wrath... and well, when you think that tribulation is the wrath of God.. pretrib is not that far fetched.
But in understanding the difference, you see what is taught biblically, and consistently, is pre wrath, a pattern of persecution/tribulation, God descending from heaven and delivering the faithful, followed by the indignation/wrath of God. I can show it in Psalm 18, I can show it in Isaiah 26, I can show it in Zechariah 9, Matthew 24, Revelation 6-7, Revelation 14-15, Daniel 12.
But a lot of it was because I decided to disregard teaching and just .. read.
Constantly told by who? Who is constantly telling us things like that?
Oh people like Paul, who teaches that it is by grace you are saved, not of works, lest any man should boast.
You know, just, statements that you don't deserve to go to heaven, and it's only because of how good God is that you're there are all.
Doesn't make you feel "at home", but more like..... a friend having you over to their place, oh the host is most hospitable, but it's not home.
No, I'm sorry. That's not the way the Bible works at all.
You need to take a closer look at 1 John 2:27.
The Bible is the final word on everything and God doesn't one bit expect us to learn it from others who are mistaken, or have been blinded by wolves and blind guides. Churches are about the last place a True Christian should be at this point in history. And that only sounds harsh if you are completely blind to the reality of the state of the Christian world at present and you have a very poor grasp of Scripture.
Okay well, everyone who is saved is indwelt, everyone prays for the Holy Spirit to interpret scripture for them, and for thousands of years, people have had different interpretations... of the same text, in the same book, and they all pray to the Holy Spirit to not lean on their own understanding and receive wisdom from God who gives liberally.
I can't claim that I'm right on my interpretations, I can only describe what I see in scripture, and relay the convictions that weigh on me (such as post rapture salvation being seemingly impossible, trust me I
want to be wrong on that one, but it is a heavy conviction none the less).