@Jessica-and-Henry0 "My experience......... hate, violence and discrimination usually comes from ignorance and misguided anger. "
Yes, the ignorance leads to fear. The fear leads to anger and violence. These types who discriminate like this see anyone who doesn't look or talk like them as some sort of alien life form. When they dehumanize another person, that allows them to treat or attack that person with impunity.
This ignorance>fear>reaction happens about other things besides human relations. If someone is ignorant about the insect life in a tropical area, for instance, they'll be fearful of any bug they encounter, whether that bug can be dangerous or is entirely harmless. Then they'll freak out, start screaming and yell for someone to kill it, when it may, in fact, be a very beneficial part of the ecosystem.
Fear has its place in keeping people safe, as when being aware that you shouldn't pet strange dogs, or stick your hand in the lion's cage, otherwise we wouldn't be biologically programmed with that emotion. But it too often comes into play as purely the result of ignorance.