//if there was only one true god - wouldn't all these remote tribes all be worshiping the same one// No.
//wouldn't the 'real' god, make sure they knew about him?// Yes.
But some people can never see the point. Jesus did not want his followers to parrot his words, or recite them. Indeed, he had just discouraged this practice. (Matthew 6:6-7) Rather, his prayer is a lesson in priorities—what is important in God’s eyes, not in ours.
You can see from the beginning of human history, God’s sacred name has been smeared with lies. Satan, has called Jehovah a lying, selfish Ruler who has no real right to govern His creations. (Genesis 3:1-6) Many have sided with Satan, teaching that God is cold, cruel, and vindictive or denying that He is the Creator at all. Others have even attacked his name itself, removing the name Jehovah from Bible translations and forbidding the use of it.
//how can god expect people to follow him, if he does not make himself known to them...?//
It would be good to reflect on those whom Jehovah drew and knew favorably. Abraham and Moses were imperfect and had flaws, as you do. Yet, they were known by Jehovah as ones belonging to him. (Exodus 33:12, 13) Then look at Korah’s example, (Num. 16:31-35) It illustrates to ask one self, How does Jehovah see me? What can I learn from these Bible examples?
Or one site you can look at and see the different
http://news.discovery/human/life/athest-church-set-to-go