Some people sincerely believe that supporting Trump is against their sincerely held religious beliefs.
Lots of mainline folks believe that - ranging from PCUSA, ECUSA, ELCA, and UMC to Roman Catholics (likely including the Pope).
I’d like to meet those holier than thou people who don’t want to vote for a man for president because he’s not perfect. I don’t think that stance has anything to do with homosexual marriage.
If you mean that Trump has much the same views as this man, you may be right.
I don’t hold that blinders will be an excuse, however.
Some people sincerely believe that supporting Trump is against their sincerely held religious beliefs.
Many of them openly support Creepy Joe Biden so I don’t value their opinions.