Not a very solid argument considering that all those countries have a different name and sensibility towards "things"... yet they remain that "thing".
People in Israel see something they can't explain, something they consider "divine" and they call it Judaism.
People in Saudi Arabia see the same thing and consider it "muslim".
Some "thing"; different personal and cultural interpretation of that "thing".
Even assuming that gods speak to humans with perfect fidelity, telling us the same "truths" over and over no matter where we live, the very nature of human culture is bound to distort that fidelity. At first through the "telephone game" effect where the fidelity is lost on every retelling and eventually by adapting those "given truths" to the already existing culture.
If you want to live a life of reason, then you need to be reasonable with beliefs as well: Yes, it's true that your geography to a large extent will determine your religious beliefs. No, it is not true that this condemns religion as "brainwashing" or "primative" considering that your geograpy to a large extent determines EVERYTHING non-genetic about you