They were also quite innovative in rocketry, jet planes, and tank technology. Does that make all these "tainted".
Also notice that the current US Army helmet has evolved to be more like the WW2 German helmet than the US WW2 design. The German design gave better protection to the head. Should we toss that too?
They also built a hell of a facer-canceller, and then there was that item that was adopted by NATO as the M-60 machinegun.
None of that means I have to use their words.