Yes, well I fell out of love with organised religion a long time ago. It's probably why I've stayed solitary as a pagan - even a bunch of people in someone's front room is too organised for me.
I get why Brian Cox gets so excited about the stuff he does, it is mind-blowing. But in a small way, my stuff is too, even if it's just for me. We can't all be astrophysicists and I don't see why some think it would be desirable for the mystical to disappear.
Sorry that I have come to see this so late.
On your point one - I fell out with the organised religion of my father and the military (the same organised religion applied to both) at the very beginning of the 1960's - from then until I was introduced to paganism, as a solitary, in the mid-1990's, my only "religious text" was from my uncle, 'if you cannot do someone a good turn, do not do them a bad one', almost a version of the threefold rule.
Despite now being a member of a Coven that performs rituals for the eight Sabbats and the thirteen Esbats I still do personal rituals, solitary ones, or with one or other or both my daughters. None of the latter can in anyway be described as organised, they are usually furiously ad-lib'd.
As, I believe you do, I do not observe any strict must do's or must not do's that might come from within the pagan community outside my family group previously described.
Separation of Church and state is as big a fiction in this country as it is in the States and will continue to be so as long as the Anglican/C of E bishops sit in the upper house.
I think that a secular society is a long way off as those at the top who need to take a big part in setting such a society up by ripping down some of the old society have a vested interest in not doing so.