Well, the point is that they want to create it in America.

Obviously, that ship (the Mayflower) has sailed but I disagree with the idea that if we ignore it, it goes away. Especially when they march through the city with torches, like some modern day Klan march. Letting them have their gathering is fine--they should have their right to free expression. But there should be opposition. And their shouldn't be a chilling effect, like, "If you show up, there'll be violence." (That goes in both directions and I agree with your earlier observation that when Antifa is violent or intimidating, they're ironically utilizing fascist tactics, as well.)