If one accepts the possibility of a God then if one does not go forward in thought about that then one has reasons I would have thought not to.
Not really - if the arguments for 'God' are incoherent or fallacious then there is nothing of substance to think about beyond the credulity of those offering these arguments.
If, when pressed a person has either to commit to the agnosticism that comes with accepting the possibility of God or to flip back and commit to a hard atheism and again there must be reasons for either course of action.
You'd have to ask someone who actually does this - can't say I've noticed anyone here doing this flip-flopping, as you suggest.
You say you have no sense of danger about the possibility of God. I would have thought that this would inspire either empathy or a curiosity about indulging an acceptance of the possibility of God.
I am equally sanguine and lacking in curiosity as regards the possibility of goblins.
I can entertain thoughts of the multiverse even though I can never prove it.
I think scientists in this field adopt a similar position.
God however brings about a negative reaction.
You're conflating the dismissal of things that aren't serious propositions with negative reactions.
And finally you have declared God thinking dangerous in your wish that some people should not be exposed to it at nativity plays etc.
I don't think that the role of the state education system should include religious participation, especially when it involves very young children: what happens within the context of the family, however, is none of my business.