If the democratic party had put forth the best candidate, more people would have come out and voted. Maybe instead of pushing for voting for the less bad candidate, you put advocate voting for someone you actually like? The problem isn't left leaning people not voting for hillary. The problem is the systemic issues in the US voting system which only really allows a 2 party system and which can completely disregard the will of the populace by instead going through the electoral college system.