Which is easier: Ordering food that ten people need to agree upon, or ordering food that two people need to agree upon?
I don't see the relevance of the question. The argument wasn't "It's difficult for the Democrats to do things that will please all their supporters, because their supporters are a motley coalition of groups that want different things". It was "Support for the Democrats will be weak in this situation, because each group will be demotivated for one reason if they've got what they want and demotivated for a different reason if they haven't got what they want".
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
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