We exist. Something made that happen. Some call it God. Some call it other things. People who speak Spanish say gato. I say cat. Doesn't make them different things. So just because different religions and cultures have different names for something also does not mean they are different things. And as for your last part 'we just don't know', no kidding. I already made that perfectly clear. You're beef seems to be religion. And to that I fully agree. But to say something didn't cause existence to exist is just flat out retarded.