His prediction was just that there would be some multiple-casualty hate crime targeting Asians, like the ones that targeted Jews in Pittsburgh (or Muslims in Quebec and Christchurch, or black Christians in Charleston), not a full blown race war or whatever.
It's not an extreme prediction at all, but Ben knows his hustle and his audience.
edit: I'm enough of a fogey to remember the pervasive sense that Japan had surpassed the US in the 80's and early 90's, and all the anxiety that brought out of Americans. For a country which is under our military umbrella!