What was Hitlers goal during the holocaust?

Biological purity in the world's peoples. One race, a single conscienceness, and an unyielding unity.

The extermination of all the Jews in Europe

Nazi ideology classified Jews as a race,not a religious group,and Hitler believed that they thus posed a threat to the long term existence of a pure Germanic race through the threat of interbreeding.

Hitler's racial views evolved over time. From the start, he was exposed to a certain level of anti-semitism, but it was of a low level, "jews are different" type common among the population he lived in. When he moved to Vienna, he became exposed both to Pan Germanic racial theories, and to close contact with jews, many of whom were orthodox and clearly "alien" in clothing, customs, and language.

During world war 1 he worked alongside jews, both as people of his own rank, and as non coms or officers holding higher rank than he had. This didn't seem to bother him, though he continued to express a general anti-semitic view.

The end of the war was probably the biggest factor in Hitler becoming a true jew-hater. Unable to accept that Germany had been beaten in the field, Hitler as well as many others blamed communists, jews, or both. This despite the fact that the German High Command had been aware of its inability to continue to fight, much less win. Those military leaders fueled the idea of the "stab in the back" by first forcing the civilian government offer the surrender, then not speaking up honestly about the state of the military at the end.

From this point on Hitler's views on jews would harden, and their removal from German society, and Germany proper, would become an integral part of his policies. Ironically, he did intervene on behalf of a handful of jews, including his mother's doctor. But his overall goal remained to push Jews out of germany, by any means.

The Holocaust itself developed almost accidentally. Before the start of war, the Nazis used every means possible to isolate jews socially and economically, and "encouraged" them to emigrate, usually leaving most of their wealth behind. With the start of the war, the "Jewish question" rose once more. The architects of the Holocaust evolved a policy of first putting jews in concentration camps as slave labor, then to the more lethal idea of death camps for those who could not perform the labor.Throughout the war the means of controlling large numbers of prisoners, jewish or not, sorting them, killing off the "useless", working the remaining prisoners to death, and disposing of their bodies would be tweaked and refined for maximum efficiency.

The ironic part is we don't know how much Hitler actually knew about this, or how much input he had on the decision making. The Holocaust was handled by the SS, under Himmler's leadership. It's probable that Hitler knew at least the broad outlines of the Holocaust, but we have no records indicating he was ever notified of its goals, or progress. But as Fuhrer, it's wouldn't matter. He allowed it to happen, whether passively or as an active participant.

His evil sadistic goal was genocide of the Jewish Population. He also wished to 'purify' the Aryan race by trying to eliminate fellow Germans who suffered from handicaps, dwarfism etc. Why? Hatred of a most horrid kind.

as I was told he hated be of 2 different race that shunt him

Dilute the "purity" of the German race – psuedo-scientific nonsense of course but he and many others believed it.