I think pretty much everyone gets an initial gut reaction when they hear the word 'Nazi'. It's a natural reaction.
Although he didn't cause nearly the death or misery that Hitler did, I doubt anyone here would refuse to smoke Cuban cigars simply because of the pain and death Castro has caused. And he's still alive to prosper from the profits. IMO atrocities are atrocities. There shouldn't be varying degrees that make it okay to support one, while not supporting another.
I think this would be similar to one of our black BOTLs refusing to smoke a cigar, or drink a bottle of alcohol because it was once owned or produced by a slave owner. (which is pretty much the majority of Americans a few centuries ago)
Just my opinion, of course.