Okay, there are two problems with that. First is that this quote appears to come from Hitler's Table Talks, which has received heavy criticism for being a biased and inaccurate source.

Second, note how he says Christianity is a Jewish invention. This is the tip-off that he's talking about the corrupted Christianity that goes against what he believed Jesus actually taught. It turns out Hitler was so brazen in his anti-Semitism that he went so far as to argue that Jesus himself was not a Jew:

Jesus was most certainly not a Jew. The Jews would never have handed one of their own people to the Roman courts; they would have condemned Him themselves. It is quite probable that a large number of the descendants of the Roman legionaries, mostly Gauls, were living in Galilee, and Jesus was probably one of them. His mother may well have been a Jewess. Jesus fought against the materialism of His age, and, therefore, against the Jews. Paul of Tarsus, who was originally one of the most stubborn enemies of the Christians, suddenly realised the immense possibilities of using, intelligently and for other ends, an idea which was exercising such great powers of fascination. He realised that the judicious exploitation of this idea among non-Jews would give him far greater power in the world than would the promise of material profit to the Jews themselves. It was then that the future St. Paul distorted with diabolical cunning the Christian idea. Out of this idea, which was a declaration of war on the golden calf, on the egotism and the materialism of the Jews, he created a rallying point for slaves of all kinds against the elite, the masters and those in dominant authority. The religion fabricated by Paul of Tarsus, which was later called Christianity, is nothing but the Communism of to-day.

That quote also came from Table Talks, and even through the possible distortion at play there, it still shows how your quote doesn't do anything to contradict my position that Hitler only opposed mainstream Christianity because he saw it as a corruption of what he believed Jesus actually taught.