Yes, there is a strong argument to be made that it would be better to just ignore the historically ignorant yahoos who are stirring up trouble at, among other places, the University of Utah campus and environs. (Historically ignorant both in the sense of not knowing anything about history and in the sense of being stupid on a historic scale.)
If the thugs who have been defacing public property with calls to “end immigration” and other xenophobic garbage knew anything about the history of the last 500 years, they would know that, in amongst the cool art and music and literature and philosophy, the story of Europe was, until 1945, a never-ending bloodbath of rival cultures, religions, royal lines and pretenders to same.