Please be specific. What parts of our Constitution has President Trump violated? The tariff thing is all I can think of, and he got smacked down by the Supreme Court.
Threat to democracy is more of a feeling than a fact. Democracy is whatever you want it to be. One-party rule could be democracy. Ending elections could be democracy.
Who is the real threat to democracy? President Trump does some outrageous, superficial things, but socialists want to burn the Constitution and they say it out loud.