Sorry, no. The republican party of the last three-quarter-century has been consistently and reliably pro-American-exceptionalism. That the republican power structures backed a candidate who claimed not to believe these things is interesting, but it happened because they believed, CORRECTLY, that he was lying about this.[1]
There has been no significant realignment of US geopolitical positioning between the parties, nor should you expect there to have been. That you thought there was is, to be blunt, on you. You followed a charlatan and got burned. You should have known better after you got burned the first time.
[1] Again, hardly surprising. He lies about everything.