Interesting that you quoted an outspoken racist and anti-semite. I'm guessing you believe in a "clash of civilizations" existential conflict between Muslims and Westerners, right?
-- Have your read the history of 20th Century Warfare?
It's like saying my opponent is a muffin-eater, and we all know that muffin eaters are to be despised, so his statement about cats is incorrect.
Do you believe that all anti-semites make invalid points about the world? Or is it true that ONLY NON anti-Semitic people can say true things?
It doesn't matter if George S Patton just got done eating 15 babies for lunch. His argument stands/falls on its own weight. Attack his argument directly, not make a political attack against his person and dismiss his argument that way.