Not here to obliterate you. I see what you are saying, and I totally get that feeling. I've had this conversation with others, and I don't begrudge you that at all.
For me, it isn't the "meaningless national championship vs a bowl game" that makes me lean toward being good with the FCS, it is the playoff run that we get to experience. That playoff run last year was incredible, and as a sports fan was the most fun of my adult life. It felt special. While it would be fun to fly out to that Alamo Bowl in San Antonio, or whatever random bowl in whatever place, it wouldn't match the excitement of a playoff run for me.
I don't see Montana ever competing with the Alabamas, Georgias, and Texases of the world. We just don't have the money or recruiting base that they do, and I don't personally expect that we ever will. If they do go to a system where those top programs are split off by the CFP system and the current G5 teams make their own playoff system, I would be happy to join that. I just really, really don't want to lose the playoff system. I don't give a shit about "purity," but the playoff system is just more fun for me and that's pretty much all I take into account in the matter because I have absolutely zero say in anything the University does.