The presence of this element has killed off many malls in the past and will finish off most of the rest if it continues. Probably no way to prevent such incidents with so much area to cover seven days a week.
When the unpleasant visitors began to dominate, mall owners (the malls I'm familiar with anyway) didn't provide the security necessary to prevent the environment from declining. When book stores and other higher-end stores left because of the new environment, the decline was irreversible.
This obviously coordinated activity by BLM-types will probably backfire. Malls on that list I'm familiar with are the destination of the "it can't happen here" elite clueless liberal types. My suspicion....a lot of them will embrace their inner Deplorable, now that it's in their backyard.
Pure speculation....one has to wonder if this is a trial run for potential inauguration capabilities to wreak havoc.