Yep there’s a lot of problematic themes that are just hand waived away because it’s so common that it barely phases most watchers.
I don’t blame you for not realizing CSC is disgusting: it’s on Netflix and the summary is super mundane.
I wouldn’t start on and older Shonen like Bleach unless you’re fine watching a ton of filler episodes. I heard the new season is better but I stopped a long time ago and don’t have the time or interest to power through everything. I’ve watched over 1,000 episodes of One Piece and it’s not something I’d recommend. Your best bet is to find someone who has similar views and get recommendations from them


To Your Eternity and Ranking of Kings immediately come to mind but I think the hardest I’ve been gut-punched in the feels is Dan Da Dan