You're describing the national guard now, not what they've been historically.
The national guard's historic role has changed for one reason:
We've over-militarized our police into paranoids who'll shoot first and ask questions later.
Get rid of the military hardware. Stop training multiple generations of police to be paranoid, thinking that every citizen could stab them in the face at any moment.
And no, I'm not kidding. Surviving Edged Weapons is a real video produced by the Milwaukee PD in the 1990s. That's how long we've been training our police to be paranoid.
Police should look and act like this (forgiving the quality due to the uploader's attempts to dodge YouTube's bots). They should not look like this
They most certainly should not be able to be manipulated by a few scubag teenagers into blowing away innocents.
And so what if they have to call the Governor to get the national guard called out? You think the Police Chief doesn't have the Mayor's cell number; and that the Mayor doesn't have the Governor's? Calling the guard in an emergency situation is a pair of calls away. Done and done in 15 minutes, and the guard is on its way -- probably from a base within the city itself.
Over the last 40 years, we have simply over-militarized our police and this is a direct result.
Police don't need to be a hyper-paranoid, paramilitary group. Take away the hardware, let a patrolman knock on the door instead, and this would not have happened.
Adama was right. The people tend to become the enemies of the state.
Get rid of the military hardware and stop training them to be paranoids, and this crap simply won't happen.
I'm quite certain that the general attitude toward police would also rise. At present, I wouldn't call one unless my life absolutely depended on it. Calling a hyper-paranoid, paramilitary organization will only lead to ... well, this.
(Also, you need to stop resorting to name-calling. It makes you look like an ignorami incapable of making a reasoned argument.)