1-how do you know it's your god that's true?
We can go in detail but I'll simply put it this way as a 'process of elimination'.... Polytheism does not make sense to me, actually I believe polytheism is contrary to what I see in nature. My opinion is that all religions were monotheistic but some turned into polytheistic religions- I don't have proof for this, it is simply the 'sheds' of 'monotheism' in practically all religions that leads me to this conclusion. Humans have a tendency of moving towards 'material' things- science is an example- as is the images created by Christians of an otherwise 'imageless God' according to their belief.
That leaves only a monotheist God.
I don't accept the Trinity of God in Christianity- for various reasons
1. Its not taught by the founder
2. It was not understood by the prior Jews upon which it was built
3. God is the center of all faiths- to not make it absolutely clear that God is triune seems to me a failure of Christianity or the founder of Christianity
4. Not to mention that early Christians the Essenes and Narazeans did not believe in any Trinity, believed in One Unity God, did not believe Jesus was God, adhered to the Mosaic law.
5. And it seems to me a Romanization of Christianity- thanks to 'Paul'- hints of this are in the Book of Acts-
So I'm left with a monotheist God... I would like to point out that I don't need a religion to believe in God- but your question is which God.... if there is only one God (which makes sense to me, polytheism does not)- then there is no question about 'which' as there is only 'one'.
Without going into the details of 'God'- you can look at any monotheist God and then compare it to the definition of Surah Ikhlaas (which you should be aware of)- let me know the differences you find, and I believe you'll see that when you arrive to the conclusion of a 'monotheist God' the question of 'which' disappears.... And as I don't need Islam to believe in God- at least not now.
if you were born and raised in a different country with a majority of a different religion, would you still be believing in your same god?
Religion doesn't matter. First of all, Islam is growing in West, so there are people who are coming to the same God that I believe in.
But I want to point back to what I said earlier. I don't need a religion to believe in God. The only speculative aspect of this is, would I be interested in the subject of theology if I were to be born in a place you are reffering to- if yes then I most certainly would be a monotheist.
Are you not a 'theist'? What is your answer?
Peace be unto you