It's another version of "Everyone who criticizes me is Hitler".

Progressives think of themselves as champions of virtue. Since they are the virtuous ones, those who are not like them must not be virtuous. Those Other People don't just have different values or lived experiences, they're evil. They have looked at the obvious and irrevocable virtue of Progressivism and knowingly rejected that virtue. You cannot reason with evil. You cannot compromise or negotiate with evil. You cannot coexist with evil. The only thing you can do is eliminate the evil.

You can only ingest so many messages of identity-based harm being everywhere before you start to really believe it. Social anxiety evolves into paranoia. The world becomes full of people who want to kill you for your identity. At that point, the only option left on the table is to strike first, killing them before they kill you. After all, your social media feed keeps telling you that this is a matter of life or death. If your lefty friends really meant this, they wouldn't be crying on Twitter; they would be arming themselves.

If religion is the opiate of the masses, then Twitter is crystal meth.