>friend went to college
>suddenly started hating everyone, calling them bigots
>threatened one person
>went full lib on facebook
What the fuck happened to him?

>>33396160 (OP)
Indoctrination.
Schools are not shy about it bro.
You can try having an intelligent discussion to him about it, and how it is easy from the point of view of someone who is disconnected from people to realize that people want to be good and kind, and are often mean because of hardships or being mistreated themselves

>>33396160 (OP)
He encountered the real world and grew up

>>33396160 (OP)
He got proselytized by female professors and converted