If the government is secular, it is explicitly excluding decisions based on belief in magic. That is "militant state atheism." There is no in between. Either you take the stance that the world is what can be observed and tested, or you take the stance that it is legitimate to make decisions based on magic which cannot be tested or observed. Those are the only two options for a government.

solidarity with religious leftists is a must for our future, imho.

I completely agree with this, but it has nothing to do with the conversation at hand, because if these religious leftists believe the government should incorporate their religion, they are no comrades of mine.