It’s not stupid. It has happened before. That it hasn’t happened “in droves” is one thing, but it has happened.
Source: I have spoken to a few of them.
Where? Europe, South East Asia and, believe it or not, South America.
Do you know who would be full of shit about leaving? Those who say they’d do it if Trump didn’t win. I haven’t met any Republican expats (or immigrants) just yet.