Does anyone think we might start seeing a brain drain out of the US given the current political climate?
Yes, but bear in mind: * where else will people go? The UK, for example, is also in an anti-immigrant mood. Though Canada may still be good. * the current political climate in the US is ... unstable. It'll be significantly different in a year or two, one way or another.
[1] yes, I know about the rep it has but unless you have lived and experienced it, you would never realise that there really isn't a "one true way" of democracy and everything is a trade-off. That's all I'm saying about that.