For him its a twofer - the power of immediate life & death at his whim; with the decimation of our armed forces as a bonus.
His civil national security force can take it from there.
It will be interesting to see how the country reacts to the depths of Obama’s dangerous incompetence and malevolence. How much of this will be tolerated while we are losing our grip in the world and becoming more vulnerable by the day? At some point a palpable level of national fear will set in.
I think you have articulated the real risk. While I do not believe he could pull it off presently, if his domestic policy continues it won’t be long before the risk increases.