Travel is the antidote to prejudice.
Sarah Silverman: 'I fell in love with' Trump voters
So yeah, I think there is more than a little merit to your handwritten note.
And what's dangerous about Facebook is that it saps the humanity out of person-to-person interaction, and people don't behave nearly as well as they might at a townhall debate, for example, where they're face-to-face. Using social media with compassion is apparently not our first instinct, so it's quite nice to see. Good on Silverman.