Al Gore at least seemed to have some progressive appeal on the environmentalism front, but yes, as a non-American that was exactly my thought - there's been no real indication from federal elections in the US in recent decades at least that very many Americans could be considered genuinely progressive in their political leaning. Pretty much all the Democrats supported policies that would be considered quite conservative (or downright regressive) in many other Western nations. None of which has anything much to do with my dismay that Trump still has the support he does.

> Even Barack Obama, who opposed gay marriage when he ran for office

Wasn't that just a political play? Given that America as a society at large is pretty conservative, even within the Democrats base, pandering to opposing gay marriage gives a net positive voting.