Wasn't it the germans ( white) who almost managed to wipe out all the Jews they could get their German hands on in Europe? And yes...because it was the Jews who defeated the NAZI Germany and not other white people, primarily slavs and American whites.
Check & mate.
The Jews persisted while the Reich did not. Hence, the Jews proved superior. Nothing I said implies that a superior race must defeat its opponents directly. Opposing me on this means saying that a race (or population within a race, ala the Reich) can be 'superior' despite not even being able to stay alive, an unlikely claim.
His argument is based on inventions, scientific achievements and influence on modern civilization and culture.
Electricity, light-bulbs, TV, computers, cars, trains, aeroplanes, rockets, space ships, satellites, internet, telephone, radio....even trousers and 'modern' clothing.
Also, democracy and Roman Law.
Then there's also the issue of military strength.
He didn't present an argument, as he doesn't know what an argument is. I could rationally reconstruct his words such that a coherent argument results, but I'm too lazy for that right now.
If whites are indeed superior, then they will not only survive the onslaught against them (the so-called genocide), but will triumph over the inferior races. If they don't survive (or otherwise continue on in a severely diminished state) then they weren't superior after all; their opponents will have proven superior. Thus, assuming -- as most racists do -- that only superior races ought to persist, to the extent the genocide is successful they ought to be supportive of darkies and Jews and opposed to whites, the inferior race in this struggle.
Of course, they're merely interested in feeling better about themselves even if they live in trailers or what have you, so the aforementioned change of heart will not occur even if it ought to logically.