If I say, “ketchup is the worst,” that's just an opinion. If I say, “people who like ketchup are idiots,” that's bullying. If I say, “because I don't like ketchup, no one should be allowed to have it,” that's oppression. If I say, “people who eat ketchup are dangerous and must be controlled,” that's racism, bigotry, or fascism. If I say, “anyone who defends ketchup should be silenced or locked up,” that's the destruction of free speech and democracy.