Ok, it seems I have to repeat myself then...
1) Space-time does not exist as something "out there", rather it's a property of cognition. (see
this post). This does not deny that there is "something out there" but it's not space-time as it is sensed and then brought to cognition by the human mind. This point is however somewhat moot and irrelevant to the general position of the argument and is best kept to the thread where I posted it to avoid derailing but it does have possible implications for point 3.
2) In same way that our scientific models of space-time and not space-time itself, mythology does not describe the thing-in-itself. We do not say Baba Yaga exists as an objective entity, we say that Baba Yaga is a description of psycho-social human behaviour under certain circumstances. While this seems obvious, it's an important distinction because both theists and atheists would take God to be the actual thing-in-itself rather than a description of psycho-social behaviour. The mistake is obvious with regards to theism, the mistake is not so obvious with regards to atheism because it's like me saying that the drawing you're showing me of space curvature on a piece of paper is clearly not actually curved space itself, it's just a piece of paper, so I will simply ignore science. So I think it's a mistake to simply ignore mythology in this way.
3) If philosophical idealism is actually true then thoughts are objective objects and gods are actually objectively real. Of course there's no point entering into a discussion about this because there's no way to prove a metaphysical position, but it's worth noting the implications if it were true.