He didn't like Jews or Muslims but he certainly was a Christian.
You have been reading too much Zionist propaganda. Hitler also made clear anti-Muslim comments.
“My feelings as a Christian points me to my Lord and Savior as a
fighter. It points me to the man who once in loneliness, surrounded
by a few followers, recognized these Jews for what they were and
summoned men to fight against them and who, God’s truth! was greatest
not as a sufferer but as a fighter. In boundless love as a Christian
and as a man I read through the passage which tells us how the Lord
at last rose in His might and seized the scourge to drive out of the
Temple the brood of vipers and adders. How terrific was his fight
against the Jewish poison. Today, after two thousand years, with
deepest emotion I recognize more profoundly than ever before the fact
that it was for this that He had to shed his blood upon the Cross. As
a Christian I have no duty to allow myself to be cheated, but I have
the duty to be a fighter for truth and justice… And if there is
anything which could demonstrate that we are acting rightly, it is
the distress that daily grows. For as a Christian I have also a duty
to my own people. And when I look on my people I see them work and
work and toil and labor, and at the end of the week they have only
for their wages wretchedness and misery. When I go out in the morning
and see these men standing in their queues and look into their
pinched faces, then I believe I would be no Christian, but a very
devil, if I felt no pity for them, if I did not, as did our Lord two
thousand years ago, turn against those by whom today this poor people
are plundered and exposed.”
[Adolf Hitler, speech in Munich on April 12, 1922,
"What did the Nazis really think about Muslims?
According to the Nazis' racist ideology, Arabs are racial Semites and thus subhumans, similar to Jews. In his book, Mein Kampf, Hitler described the struggle for world domination as an ongoing racial, cultural and political battle between Aryans and non-Aryans. He envisaged a "ladder" of racial hierarchy, asserting that German "Aryans" were at the top of the ladder, while Jews and Gypsies were consigned to the bottom of the order. On Hitler's racial ladder, Arabs and Muslims occupied a servile place, held in much the same contempt as the Jews.
Hitler made a personal remark in 1939 in which he referred to the populace of the Middle East as "painted half-apes that ought to feel the whip".
Holocaust | The Nazis, the Holocaust and Muslims