>What does evolution have to to with fascism, naziism, communism, WWII?

You're kidding?? Or perhaps you merely require some sort of an analogy to put the problem into perspective...

Hunting rifles have a legitimate purpose on Earth; you cannot really blame firearm manufacturers for the occasional kid who kills himself with one.

Suppose, however, that I were to manufacture a 300 magnum caliber rifle with pictures of Mickey, Minnie, Goofy, and Donald engraved on the stock and barrel, all smiling and waving, and begin marketing it through Toys-R-US; you'd figure I was some sort of an asshole, wouldn't you?

Likewise, back in the good old days, there used to be a toy company called Mattel, and its ads on TV always ended with Mickey or somebody saying "You can tell it's Matel, it's SWELL!!", and Michael O'Donaghue and his crew at the Lampoon used to run ads for VietNam era war toys from a company called "Mortel", including "Crispy-Kiddee napalm, baby dolls which bled katsup when bayonetted, and the Junior CIA-Man interrogation kit which included all electrical connections, and ended the ad with "You can tell it's Mortel, it hurts like hell!!!!"

Suppose some idiot were to actually start manufacturing stuff like that and selling it to kids; he'd clearly deserve whatever happened to him, wouldn't he?

What's the difference between that, and devising an ideology which claims to be a scientific doctrine and theory, including the notion that "survival of the fittest" is the only moral principle in nature, and handing that doctrine to Lenin, Adolf Hitler, Benito Mussolini, Hideki Tojo, and all of the rest of their little playmates in the last century, and telling them to enjoy themselves with it, and make what use of it they will?