As the saying goes, "Democrats fall in love, Republicans fall in line." And it's not unique to the Dems - leftist parties and coalitions the world over are far more factional and less willing to work with one another than their right-wing counterparts are with each other.
I hate that statement so much. For the most part, right wing political parties agree with each other on most matters. Its easy to fall in line when 80% of your policies for the most part agree with each other and the other 20% aren't that different or important to argue over.
The problem on the left is that they are very split on very key issues. The Green and Labor split in Australia is the best example of this. They are very split on the issue of climate change - of which Labor is currently not planning to do shit except use it as a Liberal Party beating club - and countless policies related to the treatment of asylum seekers to civil liberties to even how education should be funded. If you care a lot about climate change, there is no reason to choose Labor because they are terrified of their own shadow and will maintain the Liberal Party (our Republicans) policy for the most part.
Its the same with the Democrats. One side you have Joe Biden serve the financial industry's interests in Delaware and on the other side you have Bernie Sanders and Elizabeth Warren who want to "smash the banks" so to speak. The stances are more or less incompatible, that leads to the very clear split.
Before people bring up the magic of Obama, his biggest strength was in 2008 where he was a sort of nobody running an extremely populist message of changing the entirety of America during a time of extremely economic stress. A lot of people on the left expected a lot more from him, I'd argue his presidency has resulted in a lot on the further left feeling extremely dissatisfied with the party.
Last edited: