That's a good start to the conversation. I too consider Epicurean philosophy to at the very least "stand in the place of" what passes for religion today, and I've even argued in the past that if censorship issues get worse we might want to consider claiming "freedom of religion" as protection for the Epicurean viewpoint.
But I am also aware that any discussion of "religion" strikes some people extremely poorly as they come from a very different paradigm. So I think its good to flesh out the details and the terminology publicly because there's no doubt there will be people who will object to it. I suspect in the end there are good ways to explain the issue that advance the ball, and I agree with your point number 7 - it's a core aspect of Epicurean philosophy to have a clear position on the nature of divinity.