Several thoughts from recent experiences:

  1. Priorities are important. Given the unprecedented gap in income and wealth, inequality is the dominant issue facing the US and the world in the coming decades, no matter people decide to admit it or not.
  2. Even if Donald Trump were elected the President of the United States, there are check-and-balances at the Congress and the Supreme Court to limit his power and hence damage.  So it would be bad for the world, but not the end of the world.
  3. DO NOT lose your moral and behavior compass while actively participating in the political discussion and process. Many bad things, such as racism, violence, hatred, are bad independent of circumstances.