None of those things, properly understood[1], were in any way mainstream until very recently. And arguably still aren't mainstream. [1] Obviously, black lives

None of those things, properly understood[1], were in any way mainstream until very recently. And arguably still aren't mainstream. [1] Obviously, black lives do matter and fascism is bad, but as slogans "Black Lives Matter" and "Anti-Fascism" represent very radical political programs. You should be as suspicious of these slogans as I assume you are of slogans like "All Lives Matter" and "Anti-Communism".