Transhumanism is about trying to become your own god. That is part of paganism. Everything about the left is about paganism, in one form or another. They want to create their own reality, so they are not bound to natural law. It’s merely a reiteration of the lie that Satan told in the garden, “Thou shalt not die”.
Never met a pagan that believed that. New Ager’s, maybe. What do you consider as pagan?
Most of these folks involved with transhumanism consider themselves Humanists. Reason over faith.