Randy says:

If there are many noble and good things in your ideology of choice, though, and if you think that your ideology should be known for these things instead of for horrible crimes, you can't simply ignore your ideology's connection to and responsibility for those crimes, for by so doing you passively collaborate in its bad marketing. And if you deny your ideology's connection outright, then you're either misinformed or lying.

P.S. The Communists weren't real atheists, the War of Religion fanatics weren't real Christians and the Nazis weren't real neo-pagans.