Why did Adolf Hitler hate Jews and Gypsies?

He did'nt make any acknowledgement about the indigenous race of Australia. Evidence does suggest that his aryan beliefs might have favoured Englands invasion, but Hitlers concern was about an outside influence destroying his country, it's people & their cultural customs, which would contradict his opinion about the Aboriginal people. It's also safe to assume that the race or the skin color of an army, is in no way of a confictict when it came to Hitler choosing allies with India, Italy & Japan.