Two wrongs don't make a right.
Also - there seems to be no evidence indicating that Bernie supporters in the primary voted any less for Clinton than non Trump GOP primary voters voted for Trump. 2018 is when we will get more complete data, but there seems to be a lot of broad indicators that basically a) Trump flipped Obama voters and b) Minorities, especially hispanics, voted at equal or better rates for Trump than Romney.
My fears about the takeaway from this election so far is that
a) the Dem Party is not willing to admit that the Latino vote is not a bloc any more, and that Trump won minorities at least at the same rate as Romney. (Reminder that the first woman, asian, and hispanic presidents are currently far more likely to be Republicans than Democrats based on current candidates.)
b) that the Dem Party has to "choose" between economic justice and social justice <whynotboth.gif>
c) That we (as someone on the campaign) will continue to blame Bernie / Comey / new racism between 2008 and 2016 / anyone except our own incompetence for losing the election.
d) that white women, when push came to shove, voted for Trump over Clinton, and that the coalition has to take that into account.
(All of this is of course contingent on what the voting data has born out, and will need to be double checked once we get more detailed data about 2016 in 2018).