You're pointing out a bunch of things that are scary to you, without actually describing how democracy will be lost. The majority of our democracy can be attributed to the constitution, which requires a supermajority to be amended.

I also think you would be pleasantly surprised by the number of people who voted for Trump who would not be happy with the dissolution of democracy.

Also I think you'd be hard-pressed to get a majority of SCOTUS judges to be happy with that.