Officially that group rejects White Supremacy, but in fairness they might have tried a little harder to pick a word other than "chauvanism" whose meaning is altered forever by association with patriarchy and misogyny, and maybe leave rationing of masturbation out of the stated principles if you really want to be taken seriously.

Intellectually, their definition of "Western Chauvinism" does indeed mean staunch support for secular government with legal code informed by Judeo-Christian ethics and according to literal original meaning of the Republic- which literally is the Western model. Apparently it's also "White Supremacy" these days.

The problem is that in real life, educated Hispanics and Black Proud Boys cleaving to "White Supremacy" makes no sense, but for citizens of an inclusive Republic to support secular government based on Judeo-Christian ethics and responsible government as defense of right against might, makes a great deal of sense especially when Black and Hispanic communities probably have a far better view of the brewing alternative.

Sadly, in the West the flames are fanned (by Russians, perhaps?) so that there are displays of viciousness and hatred everywhere, anti-intellectualism disguised as enlightenment, Western morality recast as extremism, vicious attacks by folk who proclaim "when they go low, we go high" as they wish death on POTUS. Orwell would recognize this.

The problem for the saboteurs is that you can't shame patriotism out of existence; true believers are strengthened by adversity, especially when they learn that the haters are also prejudiced against religion, not just culture.