I think winning elections is the most important thing you can possibly do. Or maybe you can develop technologies for the fringe case.
Basically dictatorship comes three ways:
#1: Dictator's crew gets overwhelming electoral influence and legal power, allowing him to dissolve democracy
#2: Military coup-- existing military hardware is commandeered by generals, parliament and elected leaders be damned
#3: Rare case: massive technology supremacy allowing massive edge over existing law enforcement and military by nationalist insurgency. This was the case in the Japanese reformation, when the Satsuma domain backing the emperor was the first to be well armed with modern Smith and Wesson revolvers and everyone else had stupid powder rifle type stuff. They rolled over *EVERYONE*-- and there's a big chance automation and additive manufacturing might open up a window for something like this to happen in the future.
So if you are not an O-8 in the military or higher you have no shot at being a part of #2.
If you don't have technical skills and aren't willing to get them you can't be a part of #3.
If #3 is not achieved, it will be a peasant's revolt like Wat Tyler rebellion only worse because you will have AR-15s and the state has tanks and jets and shit. You will be slaughtered wholesale, and then they'll suspend the 2nd amendment.
That leaves #1.