Donny is an asshole. Activation of state National Guard for emergency state duty should be up to the Governor of state. Not the President. If activated by the President, they are as active Army, not not supposed to be used for law enforcement. Activating the Marines and sending them into that state, is an unconstitutional act, in my opinion. It is also, simply stupid from a command and control point of view, as the use of resources, are not coordinated down to the city/state command level. Trump is doing more harm than good, but that is typical of him.
That said, Newsom should use whatever law enforcement necessary to quell violence and protect property, including the National Guard under strict state control, if that is what he thinks necessary.