I'd be all in favor of other countries holding up any Americans coming through on a tourist visa. Maybe if enough of their friends gripe about the way they're being treated overseas, Trump country will think "Oh, it's really not a very nice way to treat people." (To say nothing of ineffective)
My takeaways were instead the following. (1) If one disagrees with the way the country is heading, one first has to understand the needs that drove people to Trump, and support people who fulfill those needs in a more positive way (rather than dismissing them). (2) Stop considering oneself absolved of blame if one didn't vote for Trump. One still participated in the environment that led to a Trump elector college victory, and is thus complicit.
Every day, not just election day.