You truly have zero clue about what you are talking about. Leftists were not in lock step with Hillary. Remember this thing called Bernie Sanders? He was the darling of the left. And he got a lot of votes and came up 300 delegates short - this was without receiving fair media coverage for a good part of the race. How the fuck you could have forgotten about Bernie Sanders is beyond me, and makes you an utter fool.
And yes, Stein voters count as leftists and she didn't have much support. But she got about 1% in the general in many areas that were important. In Michigan and Wisconsin that 1% would have given Hillary the win, and in PA it would have made it a virtual tie. Not to mention all the Bernie Bros who stayed home and didn't vote. That's far from being lock step. A lot of Bernie Bros did vote for Hillary in the general, but not enough. And many of them did so not because Hillary was such a great candidate to them, but to vote against Trump, who was an obvious anathema of a candidate.
But don't let the facts get in the way of your weird fantasy that the left was all in for Hillary.