This stance I sometimes hear from Sanders supporters (and I'm one of them, though not a US citizen myself) completely baffles me. Why would a Sanders supporter

This stance I sometimes hear from Sanders supporters (and I'm one of them, though not a US citizen myself) completely baffles me. Why would a Sanders supporter want to risk putting someone like Trump in office (through inaction)? Asides from maybe the anti-establishment aspect, Trump and his proposed policies spits in the face of everything Sanders stands for. Even if we ignore his own dangerous, egomaniac tendencies, having a Republican president in office with a supreme court nomination on the line could easily undo all the progress (however little) the US has made in areas like healthcare, marriage equality, minority rights, gun regulation, climate change, etc, and very possibly even regress on certain areas. There's so much at stake in this election and a Trump presidency will be absolutely disastrous for not just the US, but the entire world.