Anti Cat Subreddits

You've probably met someone who doesn't like cats, however people from r/catfree, r/catsickness, r/screwcats, r/fuckcats, and r/anticats are a different breed. I've seen people on r/catfree defend animal abuse and even poison cat food and leave it outside to kill stray cats. I'm pretty sure these subs are echo chambers too, as they ban anyone who even comments something opposing them.