Here's a contingency plan: just move to a better location (conservative state + away from large cities). NH, WV, MT, just to name a few.

Life will not change at all where I live, regardless of how this election ends, with maybe some minor inconveniences such as higher federal income tax, and a continuation of federal support for immoral legislation. Community will be unchanged, neighbors still friendly, businesses still open. No one's invading New Hampshire, just yet. ;)

If history has taught us anything, this kind of change you are referring to is not something that happens overnight, or with one election outcome, but slowly over time. It's been a slow burn, but we finally have a leadership doing something about it. If he succeeds, the inevitable collapse of the Republic is delayed by some time. If not, it's accelerated. Either way, there is plenty for us to do to fight for Goodness and Virtue, ensuring that even under the darkest and most tyrannical regimes we can imagine (which we aren't going to experience any time soon), we keep that Light burning until the world is ready for another renaissance.