I have to agree with Batman here. Sanders is polling strongly against both Clinton and Trump nationally, so why shouldn’t he win if people who favor him actually vote for him?
I see three different arguments among otherwise progressive folks: He can’t win against Clinton. He can’t win against the Republican candidate. And if he is elected, he won’t be able to implement any of his policies.
The two first arguments show a short memory since it’s what they said about Obama. The third argument seems a bit misguided. He will, of course, be able to implement put his stamp on policies during his term, as all presidents do, and he will be limited by the congress and many other factors, as all presidents are. More importantly, he will be able to highlight serious problems with the current system and a different way to organize ourselves. That in itself would be enough for me to vote for him. (Not that I can, since I am a US resident but not a citizen. A clear case of taxation without representation.)
Some also say that feminists should vote for Hillary Clinton since she is a woman. I thought feminism meant that women are able to think and chose for themselves? In any case, who is to say that not Sanders won’t do more for women – and people in general – than Clinton?
Less progressive folks argue that his policies are impractical, can’t be implemented, or will ruin the US. This is also a bit strange to me since most of Europe have functioned well on those policies for decades. In general, we know it can be done, and we also know that more egalitarian countries – where the difference between rich and poor is less – do much better on almost all measures. It benefits everyone.
P.S. For a while now I have had a sense that Bernie could win the nomination, and perhaps even the presidential election.