How to beat a presupp at their own game

[R00tKiT]

Of course a religion could be proven correct in the absence of a god, or of a just god.  The only ones that require either are the ones predicated on either.

You also believe that there are piles and piles of religions with just gods which aren't true - for what it's worth.

Yes, that's true. The justness property is a necessary condition, but not a sufficient condition for a religion to be correct. If some religion doesn't provide a just god, then it's automatically false, or at best completely useless, because it's futile to inquire about an unjust god. If some religion provides a just god, then at least it cannot be ruled out right away.