"calling for the national guard" is just code for "we should shoot the protesters." There's no reason to call for the guard - even if that's your goal the police can handle shooting people just fine. Everyone understands this, especially the people pretending not to

I visited the encampment last night on Harvard’s campus. Those kids were sweet and calm and thoughtful as hell. If the cops or anyone else lays a hand on them, I’ll snap. My auntie mode has been triggered. Leave those babies alone!