The Jews learned a lot from Hitler, especially how to run a country. That is why Israel currently has a national socialist based government that is doing extremely well. It's not like he is the only guy in history who ever killed mass quantities of people. Goddamn Japanese killed at least 40...
I would only go above 1.8 if you have really good cooling. Those things get pretty hot at those kind of voltages. I like to keep mine no higher than 1.725. Also, high voltages lower the life of the processor.