I completely disagree Gen'l...he'd just be a bit of an embarrassment.
He may not get his wall built, or be able to forcibly deport 11 million people, or impose his Muslim ban, or muzzle the press, but he doesn't need any approval from the Congress or the courts to blow up our alliances and destroy our international relationships. Nor does he need any approval from anyone to refuse to sign an increase in the debt ceiling and default on US debts (as he has threatened to do; he believes he can play with the full faith and credit of the United States the same way he conducted his bankruptcies) which would throw financial markets into a panic and bring on a deep global recession...
Having a President just threaten to do that would have a very strong negative impact on the economy, as would the uncertainty about policy that this mercurial know-nothing's whole approach would bring.
I think you are badly underestimating the damage this man could do.


