Trump’s ascent just means that the party lines are being drawn. It used to be Republicans favored social conservatism while Democrats favored social liberalism. They both were more or less pro-corporatist, either of Koch flavor or of Soros flavor.
Trump single-handedly re-drew the lines. The conservatives have lost the cultural war. Get used to gay marriage and abortion. Even Trump is for them. Okay, the new party lines are being drawn around Nationalism vs Globalism. Women, Blacks, Hispanics, Asians, Gays, and immigrants in general are backed by corporatists to benefit the Globalist Democratic party. Whites, particularly males, are Nationalists and are convinced of Trump — they are the new Republicans. The new deciders are White females. They determine who wins and who loses.
I think the Trump GOP is more like a new third party, something many have wanted for a very long time.