
Okay a quick Google search, apparently it was because this wasn’t actually banning beastiality, it was decoupling it from the anti-sodomy law, which was ruled unconstitutional but was still on the books, but Republicans didn’t feared that this could lead to it being repealed. So they weren’t necessarily supporting beastiality, though it doesn’t look good on a headline lol
This was in 2018. They were concerned that this bill would weaken or eliminate Louisiana’s unconstitutional ban on sodomy. Anti-sodomy laws were struck down in 2003 by SCOTUS but Louisiana still had theirs on the books, and Republicans really wanted to keep it. One guy who voted no said he wanted additional stipulations for recording or spreading beastiality media tho which is fairer