Just for grins and giggles lets say nazism was based on evolutionary thought (though I honestly don't think so)....
How in hell does that effect TOEs validity?
Sure it might lead to some morally messy conclusions but wishing something wasn't so doesn't make a difference....
Example you just jumped out of an aeroplane pulled the cord and your parachute failed to open, at this point you personally have a real problem with gravity but as hard as you wish otherwise you are still gonna make a big mess when you reach the floor......
So basically even if nazism was based in evolutionary thought so what...
It certainly leads to some nasty moral issues but it affects its scientific validity not one iota.....