Marplots, I really do not understand your argument.
By claiming God is in the category of make-believe along with these other mythical things, you get to avoid any justification for doing so. God is mythical because He's mythical, like these other mythical things.
Well, yes? Extremely clearly and practically definitionally?
Surely you'd call me out if a believer did it the other way around? Here's how it would look:
Well, if you believe in wind, or sound, or atoms - all things you cannot see - then you have to believe in God too, since God is as real as all those other things, even though you can't see Him.
I don't understand how this statement compares to the previous one.
Being invisible is not the same sort of category as
being mythical. Invisible things include literally everything that does not exist, everything that only conceptually exists, and a whole bunch of things that demonstrably do exist. Also things that are only semantically invisible (a seagull that is too far away for me to see is invisible, without magnification a bacterium is invisible). When the argument says God is invisible and lots of invisible things exist, it ignores that lots of invisible things actually don't exist.
The argument you're deconstructing says that God is mythical and mythical things don't exist. Your counterexample's metaphorically saying that it ignores that lots of mythical things actually do exist. Whereas your stated point is more that God isn't necessarily mythical.
Mythical things include everything that a bunch of people thought sounded good and passed along in some kind of tradition. You'd need a different metaphor for mythical than
invisible for me to understand how 'God isn't necessarily mythical' isn't special pleading.
Did we at least decide that God isn't an extraordinary claim, but a mainstream claim?
The thread has repeatedly discussed the difference between scientifically extraordinary and popularly extraordinary. For example, the utility of homeopathic or chiropractic treatments are pretty mainstream claims whilst also being scientifically extraordinary claims.
Also, that something is ordinary
to some group or individual does not make it ordinary in any other sense then that,
and it's the popular, rather than the scientific, meaning. It's ordinary for those in marathon training to run 25 to 50 miles every week; to almost everyone else that's an extraordinary amount of running. If half of everybody was in marathon training it'd still be an extraordinary amount of running to the other half of everybody. But in scientific terms, being in marathon training is not extraordinary because it's well within the limits of human capability.