I think those people are drawn to anti-LGBT stuff because if you aren't LGBT to begin with it's a very easy set of rules to follow. And they would like to in order to claim to be religiously righteous follow at least some rules they can tangentially trace back to the bible and all the actual stuff the new testament and bible tells you to do is too hard so they picked one rule in leviticus and arbitrarily decided that one is really important. Which is pretty stupid because they don't do the same for the other rules in that section like not shaving, no tattoos, no eating pork, be nice to immigrants etc