What would the nightmare scenario look like? Drama? The community gits gud at MIMO, to work around the abuse, and HFDF, to track it down and police it? I'd watch that movie. Hell, I'd play that game, sign me up!
If all else fails, what about new legislation involving cryptographic signatures and bandwidth quotas? What if those spawn a secondary market where people take the HAM test just to rent out their callsign for crypto tokens? Would that be a bad thing or spawn a crazy collectively-owned disintermediation of telcos? Would the world really be such a bad place if instead of paying $60 to ATT I could pay $30 to some teenagers who memorized RF facts long enough to pass a test?
I'd say that HAM can evolve or it can die -- but eventually the people holding it back will literally die and then it will evolve all the same. That's how actual evolution works. You can't stop the future. Still, you can hold it back, and it's unfortunate to see that happening, from a community of techies no less.