It does seem like a great place for a robbery.
No one would call the Cops, and even if someone did they wouldn't show up. They're banned from the premises, doncha know.
While admittedly there are rich White yuppie Liberal types who do the 'F**k the POE-lease' thing because they think it is 'cool' and they want to fit in, the vast majority of the anti-police crowd are not going to have the money to spend on stupid crossfit training.
This guy is appealing to a crowd who are not pay him anything, (like, who needs money? man..) and they will likely wreck the place just for fun. Get a bunch of Antifa thugs in there, and watch them burn the place down just for hell of it.