The Democratic party isn't falling apart. Most Democrats don't even identify as liberal, much less "the left," so while the party appears to have shaded left (a good thing, in my view), there's been nothing like the full-scale revolt against the party establishment that we are seeing in the GOP. Trump's "CEO" Steve Bannon apparently intends  to destroy the Republican party and replace it with an explicitly, instead of thinly-veiled, white supremacist party. Nothing comparable is occurring in the Democratic party.

Hillary has a long history and was the target of propaganda for decades, so she was a problematic candidate. But Democrats have rallied behind her, and she's poised to cruise to victory. The kids who got so excited about Bernie will disappear after the election, and bail on the mid-terms, until next time a presidential candidate promises them ponies and rainbows. Trump has self-destructed and left the GOP in shambles.

There's no comparison.