The conscience of the world is so guilty that it always assumes that people who investigate heresies must be heretics just as if a doctor who studies leprosy must be a leper. Indeed it is only recently that science has been allowed to study anything without reproach.
All religion seems to need to prove that it's the only truth. And that's where it turns demonic. Because that's when you get religious wars and persecutions and burning heretics at the stake.
The biggest danger to the European Union comes not from those who advocate change but from those who denounce new thinking as heresy. In its long history Europe has experience of heretics who turned out to have a point.