Yes that is very true. The crucifixion is (I believe) a real event full of mystery and symbolism. There are libraries full of books about the mystery and symbolism of the crucifixion.
But what parts of scripture are the made-up ones? Nowadays the Bible has been analysed and dated. For example we are told the Book of Daniel was written during the Selucid period after the death of Alexander, and that the Book of Job is symbolic poetry.
But there are people who believe that if I disregard the literal reality of one sentence of the scripture, I may as well disregard the whole book.
In the end it comes around to saying if I can't take the whole of the scripture literally, I can't believe in God. There are people who think that. But then science comes along and starts shooting holes in it. And when my attempts to make a square peg fit a round hole fail, I am forced to deny the science. Some people become vocal and wish to impose their anti-science worldview on normal secular society.
This causes a back-reaction where other people get upset and start to fight back against the scriptural zealots.
It is a difficult conundrum for some people. Do I choose science, or scripture?
On the other side are those who because science disproves parts of the Bible, feel they need to completely disregard even the possibility of God's existence. Some of
them become militant wishing to impose their anti-God worldview. As always, the extremists on both sides make life difficult for ordinary folks.
But I do believe some American style literalist evangelist churches really are turning people away from Christ, by making God their own property as they see it -- their 'we Christians' members only club.
As
@Thomas and others have observed, it seems to originate as an American thing, mostly. A third of the world's population are Christian, many different varieties. It's a pity the American evangelists have to force their own narrow ideas. Imo
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