I'm not sure that makes sense. The modern filibuster is a bipartisan agreement for inaction.
It's really a bipartisan agreement to defer to Senate Republicans on everything controversial, and to let them take both the blame and credit for it. Democrats are happy with that because when their votes don't count, they can pretend to support anything. When Democrats lose, it energizes their base. Republicans are happy to take credit for economically liberal and nationalistic legislation. And for the legislation that just rewards the wealthy for being wealthy (say, bailouts), movement right-wing and libertarian Republicans can vote against it (and they're mostly in the House) while small consistent groups of Democrats can cross over to make sure it passes anyway.
You definitely could be right. The motivations of the politicians there make perfect sense. Plus it allows them to fit in the "republicans are evil" to their base, and the republicans can fit in the "democrats are evil" to theirs. Meanwhile the politicians are working together.
It's really a bipartisan agreement to defer to Senate Republicans on everything controversial, and to let them take both the blame and credit for it. Democrats are happy with that because when their votes don't count, they can pretend to support anything. When Democrats lose, it energizes their base. Republicans are happy to take credit for economically liberal and nationalistic legislation. And for the legislation that just rewards the wealthy for being wealthy (say, bailouts), movement right-wing and libertarian Republicans can vote against it (and they're mostly in the House) while small consistent groups of Democrats can cross over to make sure it passes anyway.
This is friends cooperating.