Re: Just let them fade into obscurity
"Back in the day however, PETA did do a lot of good in advancing animal rights."
Rights? What rights? Are they going to get the vote soon? Can they legally be licensed to drive? Do they need to register for the draft and/or sign up for national service? I'll believe in the concept of "animal's rights" when they are capable of expressing why the concept is or is not a good idea.
"They got women to mostly stop wearing fur coats and such."
What's good about wasting rabbit pelts? The critters are going to get eaten regardless, after which they aren't using their skins anymore ... Are you arguing that they should rot? Don't try to make the argument that humans should stop eating meat. That is not ever going to happen. Humans are omnivores, despite a few holier-than-thou types protesting to the contrary.