I'l answer you questions and comment in order. If God did communicate to us directly, many people would simply choose not to accept it. By Occam's razor it is more likely extraterrestrials are effing with us than it is the Almighty himself talking. The "loose" God I am defining is the alpha-omega one. God is a word that represents every possible thought and experience that can ever occur. Having grounds for an exchange of ideas is not a necessary condition for having faith in any type of God. Yes, God can mean anything you want. By definition, and omnipotent God can be more than one thing at the same time. So an omnipotent God can be both a pantheistic type God and an Abrahamic type God at the same time. An omnipotent God can be both male, female, and non-gender all at the same time. An omnipotent God has no boundaries. An omnipotent God is not bounded by the laws of logic, language, or physics. The word is only "problematic" because you have a subjective opinion about it. Yes, an omnipotent God can mean what you claim it means from books. You seem to be confusing "denying anyone's rights" with religion. Religion did not invent human nature. If religion did not exist at all there would be just as many wars and senseless acts of violence. People are tossed off of buildings not because of "Book Gods". People are out of their minds crazy because of stories like this:
More than 200 civilians killed in suspected U.S. airstrike in Iraq
I don't think the guy pictured in the article who's pregnant wife was killed by US bombing who will probably become the next major World terrorist
is NOT doing so based on religion. I just think building tossing has more to do with human nature than it does with religion as a cause. Religion exists in many ways to try to tame our lesser angels in our human nature. No, I do not agree with your point it "always something to do with Book Gods".
People have faith in a particular type of God because it gives them meaning in their lives and makes them feel safe. It's probably delusional and make believe. But who cares if it works. On a grand cosmic timescale everything we do and believe is pretty much meaningless. But it's also meaningless that it is meaningless. So we might as well choose meaningful. And if we are going to choose meaningful we might as well go all-the-way and choose a personal God.