At what point did we retire the option of convincing people to stop being hateful? I didn't get the memo. It seems we want to ban whatever groups are considered

At what point did we retire the option of convincing people to stop being hateful? I didn't get the memo. It seems we want to ban whatever groups are considered "hateful" (but not the oppressed expressing their anger at the oppressor! Such an easy distinction to make) eventually leading to what, legal bans on speech?