"Cultural appropriateness" is a huge minefield. But I find some potential areas of agreement there, in that I'd argue that belief in god(s) is primarily culturally indoctrinated. Without someone having explained to you what the Christian god is, you can't find and define it on your own. I don't know anyone who's ever done that. I imagine it would need to be someone who grew up on a remote Pacific island or something and had no knowledge of Western Christian-influenced civilisation.
If so-called miracles are "not compatible with current methods of scientific enquiry", then other methods can and will be tried. Until then, it is safe to assume that they will be explained one day. Assigning a supernatural explanation to them seems, well, random. It's like my peppermint/paracetamol analogy - something's there that caused it, but until we know what, it's daft to say it was the magic peppermint. It's just something perfectly natural which hasn't yet been detected or analysed. Possibly because of lack of data, or incomplete data.
What ruty is asking me to do, "consider that you don't know if there is" a god, seems to be asking me to move from atheism to agnosticism. Atheist and agnostics, it seems to me, have the same evidence before them, but while agnostics choose not to take a decision on that evidence (or argue that it is impossible to do so), atheists are prepared to take an "informed bet", if you like, backed up by the weight of evidence.
Let's take a parallel and look at something not totally ridiculous but still pretty unlikely. Say, Sweden winning the next World Cup. Now I'm not a gambling man, but if I were, I'd not put my house on Sweden winning the World Cup. A fiver, maybe. Depending what the odds were.
Even if God were at that level of likelihood, I'd not put my house on it. I always find it ironic that Christians, who are mostly non-gamblers (for moral reasons which I can respect) are prepared to take such a big gamble as to believe in this thing for which there is just no evidence. It's not the equivalent of putting your house on Sweden - it's like putting your house on the Faroe Islands to win by beating Brazil 10-0 in the final. Nobody would ever dare say such a thing was "impossible", because it's not. But in practical terms, it might as well be.