That is your perfect summary of the "unitary executive" which in the past was called even shorter - the King. It has already been decided by Supreme Court - he can't be prosecuted for anything he does as President. And for his subordinates doing his bidding, even if it is illegal, he would write pardons (he may even write pre-pardons like Biden did for Fauci). Thus no constitutional crisis because both things - no prosecution and the pardons - are according to the Constitution.
A commentary on the current Trump situation i heard from the Russian opposition: democracy requires constant maintenance by the people while with autocracy the people are freed from that burden.