I guess you haven't been paying attention to what's really going on in the Republican Party. Here's a partial list and
let’s start with Mike Pence and others are General James Mattis, Mark Esper, General John Kelly, Mark Milley, John Bolton, Casidy Hutchinson, Dick Chaney, John Danforth, James Comey, Stephanie Grisham, John Lehman, John McKay, Anthony Scaramucci, Susan Collins, Mitt Romney, to name just a few. There are others. They all know Trump quite well and consider him to be the biggest threat to our democracy.
Trump has threatened to imprison his political enemies, he has said he would be a dictator on day one. To me that sounds like a leader of a 3rd world dictatorship.