If the White House starts attacking homeless people

We're used to it.  What else is new?

The White House will get away with it.  The media doesn't report a lot about homelessness, and even if the media does report about it, we are such a hated segment of the population and so much less cute than migrant children that the White House can probably set attack dogs on us, tear gas us and send the police in with batons swinging, even guns firing.

There won't be a public outcry.  We're used to that, too.