how to end hate

[Danzig]

what will it take to get people to stop treating those different from them with hate?

hw do we get people to stop with racism, sexism, treating people differently because of their religion? where does it come from, why does it happen? are we no better than a virus in a petri dish, that will attack another virus?
even here, on this site, when discussing things...quite often it devolves into name calling or worse. why?

the shooter said he almost didn't go thru with the shooting, because the people he was about to kill were being nice to him...but then he did it anyway. how do we end this? the family a few weeks ago who got a letter from an anonymous coward neighbor, saying move to live with 'your kind'. wtf?

our govt in recent decades has used force to win their point...are we as a people doing the same?