David Marshall tried to get "inside" the argument and state that one could justify belief in specifically Christian miracles. My last post was a long reply about why that isn't at all convincing.
Randal however took the opposite approach, going "outside" the argument to reject my overall approach.
After some back and forth in his comment section, he's convinced me that the argument I'm going after isn't going to undermine rational belief in a specific religion. Here's the relevant text from his comment that really brought the point home:
This really is convincing. I agree that I would need to define religious belief in a specific way, and then justify/defend an epistemology which would include providing a link between reason and knowledge.
Here's the thing though. Lets say I did go through and do all of that, and lets say I was "successful" in showing that given my defensible epistemology, specific religious belief was irrational in a way that specific political belief was not.
All the theist would do is reject my epistemological approach and go with their own defensible epistemological approach. So this kind of argument is roughly as pointless as most metaphysical arguments: it's going to get inconclusive at best. The theists are going to keep their theism, and the atheists will keep their atheism.
That all said, this doesn't mean that I think the argument I present doesn't have its uses. For instance, I think it can work as a solid rebuttal to arguments for belief in historical miracles, at least in the context that those arguments are presented to non-believers. This is the general kind of objection that if we are to follow the historical method combined with the background knowledge regarding miracle claims (and the lack of repeatable miracles by a given religion), that we can't accept the resurrection as "historically supported".
This also might have an affect on believers, since the point of such arguments, even if they're not definitive (like it seems almost all arguments of these sorts will be) it can undermine their faith. I can remember back before I started deconverting, I realized that while I believed I couldn't find a way to convince non-believers in any kind of objective way.
I didn't realize it at the time, but this was one of the seeds of doubt that were planted which eventually blossomed into my apostasy.