Well the main group that Hitler belonged to was the N.S.D.A.P or The Nationalist Socialist German Workers Party. Hope this helps :D
Hitler had some connections with the then Grand Mufti of Jerusalem, a Muslim leader.
jewish
Generally, no people do not support Hitlers actions.There are however some groups of people who deny any thing did happen and claim the holocaust is propaganda. There are also neo-nazi groups that support what Hitler and the nazi party did during WW II.
There are a number of neo-Nazi groups in the United States as well as the American Nazi party and all of these try to revive some form of Nazism and can therefore be regarded as fans of Hitler.
the kkk
Nothing, there were many minority groups that he favoured.
Jews
He was a vegetarianand an anti-drinker.
Please see the related question.
he believed that they were a lower class of being
To keep them apart from the rest of society. Hitler's vision of an ideal society saw no place for Jews (and some other groups).
Adolf Hitler's ideals included a total extermination of degenerate or asocial groups. Hitler and his party classified the Jews, Blacks and physically handicapped in that group.