The simplest answer is "scape-goating".
But that's not really a sufficient answer. Anti-semitism has been around for a very long time. Hitler and the Nazis didn't invent it. Not by a longshot. It's been around through medieval times, and even during ancient Rome. There's alot of 'justifications', but they are all some variation of 'Jews are different, so it's easy to project my fears and insecurities on them.'
Hitler himself had many reasons why he hated Jews and it's something historians have studied for years. His father (whom he hated) was part Jewish. He was turned down for art school and blamed Jews.
But the most potent was that Hitler, like alot of Germans, blamed Jews (unjustly) for their loss in World War 1. The government of the Kaiser kept telling the German people they were winning the war. So when Germany surrendered, it was a major shock to them. And Hitler was a soldier in WW1. It was, by his own description, the best time of his life because he thrived on the comraderie with fellow soldiers.
To Hitler and those like him, the only explanation for how they went from being in a winning position to suddenly surrendering was sabotage. And Hitler blamed Communism and Jews. Which in his mind, were basically the same because he viewed Communism as a Jewish plot.
Hitler and other German anti-semites (and it's important to acknowledge not all were) blamed Jews for the struggles imposed by Versailles and everything else that went wrong.
Putting it as simply as possible:
All this was much more important than stories about what a Jew might or might not have done to Hitler in his childhood. There is no firm evidence that Hitler was anti-Jewish before about 1916. Beware of naive explanations.
For fuller answers click on the related questions below.
From the 1870s, traditional, 'religious' anti-Jewish attitudes were supplemented by new, secular, racist antisemitic stereotypes and by conspiracy theories.
For fuller answers click on the related question below.
Hitler wanted to create an ultimate race also known as the Aryans, he strongly believed in survival of the fittest which meant he thought that only the fittest of species survived (like in nature). He saw the Jews as the lowest form of humans and therefore wanted to irradiate them from the earth as they posed a threat to his dream of a perfect race. Also? are Jews related to Aryan in any way?Why he believe "the Jews as the lowest form of humans".There are much more Russian civilian or Japanese killed in second world war than the Jews.The world never rewarded them with new nations for their sufferings.or at least give the Russians one of the football fields in Berlin. "posed a threat to his dream of a perfect race" how do you concoct this theory?The Americans, The French,the English,The Christians all resisted the expansion of Hitler but none were subjected to the same inconveniences as to the Jews.Yes many were killed but have you ever heard about a figure as many as 4 millions.They were kill in combats as what the Americans did in Iraq.Let a rational mind tell me who posed a greater threat to Hitler ; the Jews or the American or the English or the Christians? He was a racist lunatic! What else is there? actually germans were put out of work and business by the jews and forced to live on the street as did hitler. also when hitler was a soldier in ww1 he had a open exposure to tabun gas which may have effected his brain. after his persuement of being an artist failed due to a jew he started the nazi party and became very popular in politics and once his party was in charge he unlike politions today he actually listned to the working and middle class people of germany and they wanted jews out of germany so he asked them to leave but they did'nt cooperate so he had to use force [this was before the haoulocust] he used his ss to run down their businesses. hitler also had a major influence in the german people one reason of this is because her believed every working man deserved the right of a car. hitler may have gone to far against the jews but you have to respect the fact he went from a homeless to a leader of a powerful party which was voted in by the public not in force so hitler wasnt all that bad he only acted on behalf of the people as should any party in power as this is apparenty democracy. also hitler even near his down fall respected the rules of engagement and the rights of prisoners of war unlike saddam. For a balanced answer that does not try to make excuses for Hitler and doesn't drag in irrelevancies like Saddam, see the related question below.
because they hated jews
To make no jews in the world, and hitler hated them because they were smart and brave, etc.
They hated Jews, and the communists
because Hitler hated Jews and was bullied by the Jew!
Hell no, many people hated Jews for thousands of years, mainly Christians hated Jews due to different religious believes.
German soldiers lead by Hitler. The Nazis hated jews
because they hated jews
To make no jews in the world, and hitler hated them because they were smart and brave, etc.
They hated Jews, and the communists
Yes. The Nazis hated the Jews for what they were, not for anything that they did or did not do.
because Hitler hated Jews and was bullied by the Jew!
With cruelity. Nazis hated Jews enough to gas and burn them.
The Nazis and the Ku Klux Klan.
The Nazis wanted to be voted into government, so they gave the coutry a common enemy, they blamed the Jews for everything bad, as the world was in a depression and many Jewish refugees had just come over from Poland. Jews were only less than 1% of the population and the Nazis were voted in.
Hell no, many people hated Jews for thousands of years, mainly Christians hated Jews due to different religious believes.
Nazis hated the religion of Judaism.
The Nazis were trying to solve the problem of having a bad race. Hitler hated Jews, as when he was a failing artist they were rich and he hated them. Other theories are that a surgeon on his mother was a Jew and she dies, and that the art teacher that sent him away was also a Jew. This is why he hated Jews.