We have a two party system in the US — Bernie had to join the DNC to be in contention. Please note that in many places, independent voters were not allowed to participate in the primaries — and that comprised a very large number of voters that would have changed the outcome of the primary. Here in NYS, you had to be registered with a party of affiliation by October for the April primary in order to vote. The voting system in the US is very broken. I won’t even go into the fact that the actual voting process in many places is poorly set up (I’m being nice), leading to an inability for people to get their votes in. Aside from that, what unfolded is what unfolded. I don’t hear Bernie supporters bitching about the election now — just about the piece of trash that is in the Whitehouse.