I don't think Adolf Hitler hated Jews any more than he hated Mormons or Gypsies. He was heavily influenced by Lenin, who in turn was heavily influenced by Darwin. Darwin postulated that environmental factors affect the development of individual species, and Lenin took that one step further and suggested that the same principles applied to the development of individual societies. Lenin believed that much of the stress and competition in society was the result of human greed for wealth, and that if the wealth of a country could be removed from the billionaire industrialists and placed in the hands of the people, then a society would emerge in which everyone would have sufficient income and resources to live a good and happy life. The result would be a utopia where everyone was happy and productive, and everyone benefited from everyone else's labour. This was the communist ideal that Lenin tried to establish in Russia, and Russia tried to establish in the Soviet republics that surrounded it geographically.

Hitler disagreed with communism because he saw that greed was a powerful incentive to people to work not only harder, but to produce better products more efficiently. Hitler was a staunch capitalist in that regard and saw that the pitfall of communism was that it removed the incentive for people to work harder and more efficiently. But, Hitler latched on to Lenin's idea of artificially maipulating the development of society to make a better society. But, in Hitler's mind, that meant restoring the Arien race of blonde haired blue eyed Germans, and that in turn meant exterminating all of the "inferior" races so that the dilution of Arien blood could not occur again. Hitler wanted to reconstitute the Arien race by breeding pure Germans with pure Germans and killing off all the other inferior races that might compromise the reconstitution of the pure German (pronounced "Arien") race.

My understanding is that Hitler didn't HATE Jews. He saw them as an inferior race that needed to be exterminated for the benefit of the human race.

Animosity against Jews in Europe extends back to the middle ages. At that time, the philosopy of the Church was that you lived your life by complete faith in the Bible. The Bible teaches to have faith in Jesus Christ. Jews didn't have faith in Jesus Christ, and were therefore considered "them" in the "us" versus "them" equation. But, Jews were in good company. The Church didn't really like the way stone masons were charging an arm and a leg to build cathedrals, and so there was animosity between the Church and the masons guild, and the masons guild is what eventually turned into the Masons we have today that do good Christian work for charities, hospitals and the community at large. The masonary contractors of medieval Europe were good upstanding Christians just like everyone else (cept the Jews) but they were in a conflict of interest when it came to negotiating wages with the Church. They wanted high wages, and that put them at odds with the local priests and bishops all over Europe. But, they were still Christians, and so they made the focus of their "Masons" Order one of doing charitible work within their communities, and the Masons still do that work, although their Order now consists of people from all walks of life, not just masonary contractors.