RE: If rules change, will you honor new rules?
Unfortunately, the law does allow the FAA regulatory control over the airspace above your property.
Further, to keep this from being a 'hijack', that is why voting 'Yes' by definition here as being considered 'surrender' is disengeniuous. If the city/county/state drops the speed limit on a road, complying can't be considered 'surrender.' To vote 'no' and speed risks fines or other legal actions.
Now, even a police officer will say, as far as breaking a traffic law goes, if there's no cop, there's no stop. So certainly enforcement by the FAA could be very difficult. Even so, just as with a speed limit, a Federal Aviation Regulation is not a suggestion, it is law. Violate at your own risk. And for those of us who's livelihoods depend upon maintaining FAA certification, willfully violating FAR's is especially risky.
That said, the letter posted above by tacx is encouraging. All of the debates here on RCU about impending regulation of the hobby by the FAA may be moot.