I hate when people dont agree with me online

When I go on reddit and I point out objective flaws and valid criticisms and people start replying to me with anything other than "you're right" I just know these guys are illiterate dickriders who would eat shit if their favourite creators told them too. Like I know im going to fan subreddits where fans of a certain work congregate but why cant I go there and say "I dont like thing (for objective reasons btw)" without any pushback why cant they just agree with me? Sometimes I'll even start my objective criticism by saying "Im a fan of _____ but" to make my point more valid and let people know it comes from a place of objectivity and not bias and they still wont automatically just start sucking my dick? In their endless stupidity they will actually start talking positively about the thing they like? Like morons? Actually makes my blood boil