how vile can people be

i got this text on reddit, it was a 32 yr old guy, and i knew tht obvio this person is kinda fucked up, coz he started talking about kinks, and he told me straight up he was married, he has fucked his cousin and niece and has had sex with a barely legal person.
and after all tht when i actually tell him how fucked up tht is, he has the nerve to defend his actions saying socitey is a construct, black/white shit, i dont have enough iq or open mindedness to understand that, and proceeds to defend his actions by saying names like toby magurie, gandhi, trump etc, tht oh so u think these ppl are monsters too.
and omg his wife has no idea about this, my faith in ppl (and men) dwindles each day, wtf is wrong with ppl i feel like vomiting