This subject has been covered in various responses, so I will limit myself here to linking them and providing a short explanation of context.

It is not exactly true that Hitler 'hated' Jews, the modern overuse of this word notwithstanding. The animosity of Nazis towards that group was a consequence of the ultra-nationalist and volkist policies National Socialists shared with other nationalist parties of the time (not only in Germany - antisemitism was very common among radical nationalists across Europe back then and often is today). In addition, this stance was largely based not on purely emotional basis, but was presented as a logical, rational conclusion of Hitler's ideas (that were, of course, based on false premises and taken to an extreme). I have covered the topic in more details in this response.

Speaking of ethnic groups, one can't also forget about the Roma and Sinti whose persecution, based both on racist ideas and the visions of the future society, has been described in detail by u/commiespaceinvader in this thread.

The treatment of people who were disabled was also dictated by the ultranationalist and volkist tendencies that saw the eugenic ideas very conducive to the concept of 'racial purity', what resulted in the mass euthanasia of people with crippling congenital and hereditary conditions. I have described a general approach to disability in Nazi Germany here. You may also be interested in this and this response by u/commiespaceinvader that are related to the treatment of the injured German soldiers during the war.

The persecution of homosexuals (or, to be precise - homosexual men) was not a Nazi concept, as male homosexual acts have been outlawed in Germany since its unification in 19th century (and have a centuries-long history). Nazis only followed with the law that was common in other countries as well, although totalitarian nature of Nazi Germany made the persecution all the easier, as described here.