Yes, any such proposition is bound to be disputable. But nevertheless, I think that you can really only hold to ‘every religion says more or less the same’ if you ignore most of what most practitioners of any given religion will believe in actuality, ending up with the watered-down concepts of modern day ‘private’ spirituality, believing that ‘there must be something’ without actually attributing anything to that something… And if that’s all there’s to your religion, well, it just seems to me that nothing really is lost getting rid of this vestige, as well.
It’s just trying to have your cake and eat it, too: you get the supposed comfort of believing in some higher principle without any of the discomforts of having to confront whatever you believe in with reality—as there’s really no discernible claim made about this object of belief, it can’t be in conflict with the world as we experience it.