Windows guy: You might as well play the hitler card, dude.
Apple guy: HEY MAN SCREW YOU BILL GATES IS LIKE HITLER
Often times this is done with little thought as to whether or not adolf hitler was for or against a particular side. Who cares about logic it's just fun to insult your opponents by likening them or their beliefs to tyrannical despots.
He was For: abortion, capital punishment, censorship, eugenics, gun control, racial purity, and vegetarianism.
He was against: atheism, capitalism, communism, democracy, drinking, the disabled, feminists, Jews, Jehovah's witnesses, Gypsies, homosexuals, labor unions, pornography, prostitution, psychoanalysis, and smoking.