Don't go overboard. We have laws in place. Now use them!In your opinion it is unethical, immoral and evil. I'm not saying we should kill every single person with a left bent, I am saying kill and or round up the agitators and their financiers, preferably they would surrender peacefully.I've tried to think of ways this could be resolved without violence, but then I realized that those solutions would be met with violence.
I believe it would be perfectly legal to outlaw communism and socialism because they are subversive, they seek to destroy the framework of this nation..but if we did that they will still get violent in response.
If they meet you with violence you defend yourself. But no more than that. Using the power of government to round up those who you don't like is unethical, immoral, and evil. Anyone who desires that sort of outcome is quite simply stupid and incapable of even basic thinking.