2016 Postmortem
In reply to the discussion: When will the Democratic Party ask itself why it is losing so many members? [View all]mythology
(9,527 posts)Are you going to suggest that Republican candidates aren't trying to sell to their base?
People are disconnected from a lot of civic institutions wider than just political parties.
But you can make a pretty good argument that the parties and members being more correctly aligned is a significant part of why fewer people are joining parties. If one is closer to the middle of the political spectrum, the increasingly partisan bases can be a disincentive to join the party. Just look at this site where you see people claiming that if Clinton wins the party will be over or that it means progressives (seemingly defined as voting for Sanders) will have lost the party.
Additionally partisans in both parties complain loudly about Dinos or Rinos even as there are no longer any elected officials who vote more with the other party on either side. When somebody who votes with you 65% of the time is considered to be on the other side, it's just silly.