Hot take: The argument of “Christians can’t support LGBTQ because it is a sin in the bible” is stupid. It also says in the bible that anyone who works on a Sunday should be killed, but I don’t see Christians getting the knives out when they go into a corner shop on Sunday.
It doesn't say to kill anyone, (except in a few specific cases in the old testament, which doesn't apply anymore). Also, for Christians, the Bible is (or should be) the ultimate authority. We have to put everything else below it.