Instead of smirking, prove otherwise. I've given the argument a lot of thought - how much cognitive power went into your little sneer? In terms of sheer number of acts that have in some manner or form borrowed from Kraftwerk, I think you'll find their record hard to beat. Perhaps Robert Johnson or Hank Williams might beat the record, but arguably they were practitioners of already established musical forms. As I said, you don't have to like Kraftwerk's influence (I for one certainly don't - this isn't some misty-eyed tribute to Kraftwerk), but it is very real and widespread.