white supremacists tend to worship a semetic god.
Fake ass ones do.
But I have always wondered why some do though. I'm like "You hate Jews, but why worship one and belong to a Jewish cult that became it's own religion ? "
Best answer to that is probably "because it just got to be a habit for us."
Christianity did in fact arise from a Jewish cult.
Within white nationalism, it's a hot and heavy debate: is Christianity good for whites, or bad? The "bad" set points out that turn the other cheek is a way dumb approach for someone trying to defend himself, and Christianity preaches that. The "good" set points out that white gentiles adapted Christianity to their own ways, beefed it up a little and made it less wimpy. Read "The Germanization of Medieval Christianity" for a take on this.
Lots of white nationalists attack Christianity and prefer Nordic, Germanic, pagan, etc. spirituality. William Pierce of the National Alliance is a good example. Alex Linder is a white nationalist who loves to mock Christianity.
One who defends it is David Duke. He says "There's only one religion for the white man, and that is the religion of Jesus Christ." And of course you have some groups like Christian Identity and Church of Jesus Christ - Christian that are openly white nationalist and Christian. It is Christian belief that spurs men on to fight, truth be told. Look at the Crusades.
Who knows. Personally, I don't think any white man hoping to rise to prominence in the defense of his people will get far by bashing Christianity. Millions upon millions of conservative, racially conscious whites are practicing Christians. You cannot turn them off -- they associate anti-Christianity with liberals, Hollywood, Jews, academia, the media, etc.
Me, I have recently started attending church after many years. I see NO CONFLICT between defending my people and being a believer. I have ALWAYS believed in God, and I find it very hard to believe that He would want the white race to be killed off by other races. Very hard to believe.
In fact, I believe that God calls me to defend my race. And God, does it ever need defending.