As with all discussions of "the Democrats", the problem is speaking of them as a singular anthroporphic entity with a single brain and set of motivations.
The issue is what it takes to get forty Democrats, the minimum for a filibuster, so if six Dems are resistant to a filibuster, that means it doesn't happen, even if 39 would be willing to filibuster.
If 39 are willing to filibuster, does that make "the Democrats" spineless?
Nathan Newman