My God doesn't care that you believed in a wrong God.
Well, that's actually by definition right. The only thing that everyone might tell you is that your would be doing right, unless you know deep down that you have chosen a "wrong" God, just because you didn't like what the "right" God for you.
It is thus of note that the "right" God would be the God you were taught to get to know since you were a child (unless you weren't), so the only appropriate reason to "change" God would be not by actually changing, but actually going deeper..
By getting to know this God, this very God will lead you to the path to be follow, which may imply changing religion or not. If you changed religion because your own God told you to, would be the most appropriate thing. And this happens.
This is what many people fail to do, as they would not dig deep into their own religion, and connect to such God, but rather they just do the things they believe the are supposed to do, because they would not even care to understand their own religion.
On the other hand, you have your typical Scripture guy (be it Bible, Quran, you name it), who won't go beyond quoting things, and follow things just because it is written and adjusts to their single interpretation. These people hardly get to know their religion, for their religion is a book, not a God. And they would change religion because their Book was not what they expected, or they found a Book they like more, or explains things better for them.
If there is a god, religion, a book or another person is not required to see it.
If there is a god, I would suggest that that which is external is a hindrance to seeing it at all for for one to see it, the relationship would have to be between god and the individual with no intermediary.
this is correct.
Then you would assume such God does not want you to cooperate with the rest of humankkind
Cooperation between humans has nothing to do with Gods as I see it. Cooperation can go on with or without a God. And a God would exist even if no one believed.
Anything human-related is God related. You, yourself, said it was all inside or something like that.
no, not really. the connection is personal, that's different.
it does not assume that. it assumes you look inward for guidance, rather than consulting the blind.