You're an atheist in practice. Whatever philosophical distinction you want to add in addition doesn't really change that part.
Btw, did you get a satisfactory answer to what the 'regressive left' is referring to?
I'm not sure if I did, but I don't think so.
As for being an atheist in practice, what do you mean by that exactly? Being an atheist doesn't really affect my life any.
Do you mean if you had a 'religious experience', a vision or a near-death experience or something? Or do you mean if God showed up, and we could somehow empirically verify that He was who He said He was, that you would accept the evidence and change your mind?
Nah not the first, those can be triggered by in non-paranormal ways, so I wouldn't trust them.
I would change my mind if the deity that showed up corresponded to one that was written about in whichever holy text. So if Ahura Mazda showed up, I would look through Zoroaster holy texts, see what's written about Ahura Mazda, what he's supposed to look like, what sorts of magical feats he's capable of, and I would compare it to the deity that showed up.
In the case of Catholicism I would see if the deity that claims to be the Christian/Catholic God matches up with what is written about it in the Bible, mainly the old testament I guess.
I don't think there's any empirical way of doublechecking that a super powerful deity is actually the same person that was written about thousands of years ago.. I mean, we're talking about a bunch of apes performing experiments on a star child, or beyond, or whatever.
But that's the best that can be done - does this deity match up to what was written about him/her/it in holy texts? Can it perform the same or similar feats? Does it speak in similar ways? etc. If it matches up enough, I'd have to concede that the Zoroasterian God exists.. or the Catholic God.. or whoever.
I wouldn't necessarily accept that this deity is actually the creator, though, it could just be some powerful entity that wants us to think that - but didn't actually create the universe. It could also be an impostor, and that's possible, but the apple I'm holding in my hand could be fake too, even if it tastes like an apple. So.. some amount of "yeah alright I'll give you the benefit of the doubt" is required.
The distinction is that I am not convinced that any religious texts are actually describing the creator of the Universe, so I wouldn't have to "double check" that this is in fact true when a supposed deity from a religious text shows and starts making claims of Godship. The best I can do is match up the actions of this entity and see if it's reasonable that it's the same one.
It would convince me enough, cause I mean.. If a burning bush shows up, nukes a couple of our cities, makes it so that the day lasts 812 hours rather than 24 (or whatever), sends a plague of locusts down on ISIS, brings people back from the dead, and seems to be able to do everything that the God in the Bible did.. Then I'd assume it's probably the same entity, even if it is not necessarily God - aka the creator - hey, maybe the Bible got it wrong too, if that makes sense.
But even if I wouldn't be convinced that this entity is the creator, I could no longer call myself an atheist, as I would see a God in front of me right there. Or an alien with God-like powers. Either way, that's Godly enough for me.