In this case, meshnets would likely be lobbied into only being operable by licensed entities as radio waves are now.
- Lobby to quickly fabricate and sell appropriate talking points (ensure some anti-terrorism or anti-CP laws in there to gain mass support) to congress and the media
- catch a few mesh operators and bring the hammer down on them, quickly making an example that kills off support for the niche community
- provide the alternative; enumerable 'licensed' operators to exist that sap demand for unregulated comms ('not worth the effort' or consequences of point 2) and maintain the same (or likely evolved - there'd probably be a smarter way to profiteer off meshnets than trying to meter mesh devices for 'fastlanes' but maybe they'd start there) regulations that maintain your profit margin
And there goes your 'fix'.
The reality is that whatever technology you develop, the monkeys with big sticks will always be able to skewer you, so it's up to you and everyone to collectively agree what we decide are skewerable offenses, not merely to say 'well let's just get to the iron age first so we don't have to worry about it'.