How about a starting a Gandhi style rebellion. Declare you have 2a rights, be familiar with all SCOTUS and state rulings defending 2A, form a 10,000 man march ocing your hand guns and have the money to hire the best 2a lawyer, be prepared to go to jail first. Do the opposite of Black Lives Matter, don't burn down your city or town. Keep taking the 2a case to courts by getting the backing of a super pak. It worked in India.
It might work a bit faster if those 10,000 supporters of RKBA would all show up for jury duty, do their level best not to get excluded, and then simply refused to convict for violation of any unconstitutional law restricting RKBA.
It doesn't take huge numbers to prevent bad convictions, if those who strongly support a position don't exclude themselves and don't back down or get stupid during deliberations.
Even if only 10% of the population strongly support RKBA, it would be rather difficult to get a conviction on an unconstitutional gun law if that 10% can avoid getting excluded from jury service. Assume a 12 person jury.
The odds that the first jury doesn't support RKBA is 0.9. The odds that the second person doesn't support RKBA is also 0.9. But the odds of getting two persons in a row who don't support RKBA is 0.9 * 0.9 = 0.81. The odds of seating a 12 person jury with no supporters of RKBA on it would be 0.9 ^ 12 = 0.28.
This means that in 7 out of 10 jury trials, prosecutors would be unable to get a conviction even in the face of evidence beyond a reasonable doubt. They'd wind up with a hung jury. Raise the percentage of RKBA supporters (willing to nullify) to 20% and the odds of conviction drop to 7%: 14 out of 15 such trials would end in a hung jury despite the evidence.
How long do you figure prosecutors keep wasting time on charges that result in a hung jury between 72 and 93% of the time?