I'm not cheering it on, but because I know that the point of the deployment is to freak me out, I refuse to take the bait. It's not like people carrying automatic weapons is a sight unknown to western Democracies; you see it all over Europe.
When they do something crazy, I'll be right there with you. But the President has the power to deploy the Guard to protect federal property, and while these deployments are abusive, they're not unlawful. Most of what people say about the Guard actually taking over policing is implausible. So I'm just going to call it out for the bad policy that it is and then not act like the collapse of society is imminent.
The fact that "a large part of the country" doesn't think this is a big deal should tell you something valuable about what the best next moves are.