I agree the Republican party “as was” is gone.
We’ll basically have three parties: A right-wing xenophobic party, a left wing socialist party, and a centrist coalition party that will actually have to run the country that exists in the real world, and will be blamed for every problem that occurs. The end result will be that eventually the centrist party will be destroyed by a recession or exogenous event they take the blame for, and one of the two fringe parties will take over and the USA will effectively end.
You are correct.