I agree with some of the things you said, but I disagree with this. God is hidden, I agree there, but he can reveal himself to a rebellious human, the Apostle Paul is an example of that. We cannot, from our lack of knowledge, try to limit how God can reveal himself.
There are no limitations to the revelation of God.
Peace.
Yes you are correct. A rebellious human is able to have their mind opened to the truth.
The full measure of God's love can only be revealed through an individual after much prayer and fasting and then is able to be broadcast-ed to others. It is like being allowed into a holy place, a sanctuary. Even after having my mind opened up to the truth I struggled somewhat and it was 14 years later I understood the way passed the barrier in the mind. It is all plainly written in scripture and is a process from own mind into another mind and then the full revealing of God's Love. Every person has own power that begins from own mind. A new mind and new power. The perfect and acceptable example is Jesus, having God's Love and immortality.
Is mind a collective bonding between individuals or is it all within own brain activity.
If a comparison is made with a radio station all mankind is on the same station and reflects all mental processes and each will react within certain parameters. A new mind leading into immortality is on another station altogether.
A culture resists change and blocks access to a higher goal. It is a bit like the inventor with an excellent idea that is not accepted.