Well, to be fair, if they took over a mall like Black Lives, I’m sure the cops would at least ask them to leave. Politely, at a distance. You get a different response if you mess with almighty commerce (and a very different response if you’re not white, of course).
I think this lack of reaction is because there’s a real effort to avoid replicating Waco or Ruby Ridge, in the same way, I was reading, that the IRS is basically not enforcing tax codes to avoid repeating the fallout from over-examining the tax returns for Tea Party groups. Weirdly this desire not to re-offend only applies to white conservative groups. When it comes everyone else, the government is willing to make/allow the police to make the same fatal mistakes over and over and over again…