The KKK also kind of, you know, killed people. Like hundreds or thousands of people.
Ha, I wonder how much the usual comic book army of henchmen is patterned, unconsciously, after the KKK. An entirely-male batch of dicks, who engage in violence while beneath a mask, for little to no apparent reason.
And of course our heroes themselves have been likened to the KKK, probably at least as far back as Wertham.