Always seems to be a bit of sectarian tribalism in US politics. Well historically. Catholics (and to a degree those American cousins of Anglicans - the Episcopals) tended to go to the socially conservative Democrat wing. While the bizarre evangelical (cults) going Republican. So they feel blind loyalty to the cause, no matter what sort of heathen is in there. And Trump is a man of no principles. So will just say and do whatever the base wants, to get popular with those he’s identified as potential voters.The Evangelicals love Trump because he gets policy stuff done for them - like getting SCOTUS to jettison Roe vs Wade. They see no contradiction in a deeply flawed man who never goes to church as "doing the Lord's work".
Yeah it's bizarre - the Southern Evangelicals will vote for a secular heathen who screws porn stars and is an amoral *smile* over Biden who attends (Catholic) mass every Sunday.