So? How many good Germans had faith in Hitler? The sheer numbers have little to do with real faith, and more to do with fear of everlasting damnation galvanized with the promise of some future heavenly paradise.
You do realise it was more than religion and more than fear that they followed Hitler. You need to understand the circumstances as to why the Germans followed him.
After World War I, a new form of government developed, as a republic. But the aftermath of the war, Germany was crippled by very high unemployment and economic depression (in 1922). It got even worse when Great Depression hit the US and European markets, in 1929.
Hitler's policies brought them out of the depression, rebuilding Germany. The nazi won in 1932, by 1934 this rebuilding programme cause the unemployment dropped and wages to rise.
I am not saying that I like Hitler or Nazi Germany, but I understand why the Germans followed him. But you have to be realistic about what happened.
In the following year, 1935, he began targeting at German-Jews and other minorities, putting them in concentration camps.
The Jews were targeted, not just because of religion, but for political and economic reasons. A lot of Jews became wealthy through professions and trades. They robbed Jews of their properties and wealth, through mass confiscation. That bolstered their coffers immensely.
By removing civil rights in Germany, he could do what he like to minorities (especially the Jews and Romani and anyone who disabled or gay), and that include turning concentration camp into death camp.
Yes, Hitler did use Jews as scapegoats, but it is not to elevate Christianity, as much as elevating his own power.