Yup. That whole area is the very definition of slippery slope. They got homosexual marriage. They are making tremendous progress turning children into sex toys for groomers. Polygamy will be easy when they decide to focus on that. And bestiality is just another bridge for them to cross.
Ugh! And, unfortunately, you’re 100% correct, except I think the Gaystapo agenda end goal is legalization of sex with children. Polygamy legalization is simply a step toward that.