Based on what I've seen, the alt right is a loose coalition of disillusioned people who know something is deeply wrong with establishment neoliberal orthodoxy. They believe we live in a dysfunctional, corrupt, hypocritical anti-white system hostile to traditional western civilization. The vast majority are white, but not all. The vast majority are distrustful of organized Jewry to varying degrees, and see it as a corrupting and destructive force in the west, but most are willing to welcome individual Jews who expose and oppose the hostile anti-white elements of this organized Jewry.

Most are race realists, but not necessarily white supremacists, and to the extent they are white nationalists, they are still probably less ethnocentric and fanatical on the subject than your average zionist Jew(IE Jewish nationalists), and definitely less fanatical than the typical likud supporting Israeli, and yet the democrats and the neoliberal establishment will happily funnel billions to the most extreme right wing Israeli governments while openly calling far less right wing westerners far right extremists.