"The doctrine of hell"; why is it so universally rejected?!

Why is the doctrine of hell so widely rejected?
“[Ye] serpents, [ye] generation of vipers, how can ye escape the damnation of hell? 
Wherefore, behold, I send unto you prophets, and wise men, and scribes:
and [some] of them ye shall kill and crucify;
and [some] of them shall ye scourge in your synagogues,
and persecute [them] from city to city:” (Matthew 23:33 to 34)
https://www.azquotes.com/quote/694550
https://www.ben-hur.com/the-great-agnostic-robert-g-ingersoll/
Launonen, L. (2022). Hell and the Cultural Evolution of Christianity. Theology and Science, 20(2), 193–208.
https://doi.org/10.1080/14746700.2022.2051251
https://uuharvard.org/services/no-hell-church/
https://www.e-sword.net/
https://www.purebiblesearch.com/
https://www.jw.org/en/library/bible/study-bible/books/
https://www.azquotes.com/quote/856730
@ScourbyYouBible
https://www.youtube.com/@ScourbyYouBible