The only way this nationwide trend is going to be turned back is for people to collectively write their representatives in Congress, and or bring lawsuits against the municipalities. The steepest climb is determining whether or not municipalities restricting access and or anchoring are breaking the law. Violating federal maritime rules and laws.
That will require the participation of attorneys, or at least people very knowledgeable in this area of law.
If you are such a person, and are not happily ensconced in a marina, rarely using your boat to go anywhere anyway - the boating community needs you!
The article is light on who the trouble-makers are: land-based homeless, folks on derelict boats, or just misbehaving transient boaters?
With all the government belt-tightening going on, you just know that loopholes like living for free at anchor, and over-reliance on free public resources like public docks, washrooms etc will be re-examined, and new revenue streams sought out.