Why do seemingly many responses to fight videos have bigoted-rhetoric? (specifically on Reddit)

This video as an example has the "mEn'S rIgHtS!" sexist rhetoric of "equality".

Also:

• https://libreddit.spike.codes/r/fightporn/comments/vjytb8/somewhere_in_russia_a_fight_over_a_woman/ (Fatphobia)
• https://libreddit.spike.codes/r/fightporn/comments/10e1r9l/kim_deserved_that_broken_nose/ ("mUh MeN's RiGhTs")