Yeah but ... so? Any group of people who believe that their race, religion, whatever is superior and ought to replace and eliminate all others is a PROBLEM and I don't care what their race, religion, whatever is. Nazis, for example, are a PROBLEM. Nazis ARE bad guys, period. They have demonstrated (check out some mid-20th centry history, for example) that they are a MAJOR PROBLEM. 

Let's not allow ourselves to get sucked into observing that some people from non-white races are also racists and concluding that therefore Nazis have a right to do their thing. They don't! Nazis ARE bad guys, period.