I think people who "hate anime" usually just hate certain tropes they've associated with it. I like anime a lot personally, but I can see how the abundance of pedo and pedo-adjacent shit is a major turnoff (Evangelion gets posted a lot on here, but it needs be remarked that the two "waifus" in that show are fourteen). Then there are the racist jokes, the transphobic jokes, the homophobic jokes, the misogynist jokes...

That doesn't mean that there aren't a whole lot of shows that steer clear of those tropes, but once that association is made they're never going to break it on their own.