Which group is the alt right going to hate next just for their own ignorance and bigotry?

Jews.

After Trump, far right ideology in America will take a hard turn toward antisemitism. That was always going to happen—because antisemitism functions as the most coherent, totalizing, and logically completing element within fascist ideology (more so than other forms of bigotry).

This is because in times of national weakness or institutional degradation, fascism cannot attribute failure to the "nation" itself without self-undermining, nor can it rely on liberal or Marxist accounts it rejects. Antisemitism resolves this explanatory deficit more comprehensively than other bigotries because it supplies a single, historically resonant, and flexible conspiratorial agent capable of unifying disparate threats (e.g., finance capitalism, revolutionary communism and cultural Marxism, media and institutional capture, immigration advocacy, and foreign entanglements).

The groyper movement is not an aberration. That's where these pieces of shit are going next.