idk if i gotta spoil tag this but JOJOLION SPOILERS !!!
i like him as a villain a lot! i don't know how to word how i feel about jojolion in detail (there's a lot of ideas here) but i love his foil to josuke and it really drives home just how human josuke is, wanting connections and identity, meanwhile tooru (and other rock humans) only keep people around if they can use them
as a disabled person i also like his commentary on the health industry, how vulnerabilities are taken advantage of and exploited for profit, and then ultimately chasing that path being his undoing (like how a wasp pollinates a fig and then dies in it) and his death being from a sacrifice is just awesome
there's more about how i feel about him but i cant think atm lol. i don't hate him though, but i don't think he's quite my favorite antagonist either? but imo he serves his purpose, just takes a little more introspection to see it fully. i think people misunderstand him because of his calm demeanor, or focus solely on his interactions with yasuho (which yeah, he's a freak, but he's also a good representation of human depravity)
i've only read jojolion once though, i need to reread fully, my memory isn't the best