No they're not, they're voting for results. They got an abortion ban they've been campaigning for since the 70's because of him. They don't care about where/how he prays, just about results.
Technically since the 80's, which is important because Roe v. Wade went into effect in 1973 and none of them batted an eye for nearly a decade until it was suddenly murder in 1980.
Sam Altman is actually a way better Antichrist candidate. Aside from the obvious apocalyptic capabilities of the tech he's fucking with, he also checks the numerology box:
Samuel
Harris
Altman
And that last name could be construed to evoke alternative man or germanicized to suggest Old Man, either of which could be made to seem spooky spooky.