It’s hard to pick bcs somehow I never really got offended or uncomfortable too much myself since I loved stuff with that type of satire style (most of the Sasha baron cohen stuff, GWAR) but I’d say thinking from a more outsider perspective of ppl who haven’t watched or seen that much South Park I’d say as far as just disturbing af woodland critters could be up there, the real sex change operation, lemi winks inside of mr slaves ass, stem cells since homie literally eating the damm things regardless of what your stances are on the whole abortion thing I feel like lots of ppl not used to seeing things like that or just watching the show for the first time would definitely drop their jaw seeing someone suck on a literal fetus 😭💀