Less use of filibuster is better for democracy, but no use is potentially worse. Democracy shouldn’t just be whoever has one more vote than even can do whatever they want for several reasons. First, and most importantly, it means that controversial bills could get passed without an appropriate amount of negotiation. Second, it could end up freezing the government as bad as unlimited filibuster if every time the party in power changes they end up spending a significant amount of time undoing what the last party did, and we end up never making any meaningful progress. At that point, passing nothing is better than potentially wildly changing legislation.
The biggest problem is, use of the filibuster is akin to the prisoners dilemma. It’s best for everyone if it’s almost never used, but in general it’s always best for the minority party to use it whenever they can’t beat a vote straight up. Worse, each time it’s used, it cheapens it. Maybe once it’s used to stop major tax reform, so next time it doesn’t seem as bad to use it on lesser legislation, and after a generation or so, it gets to where it is now where what had been routine legislation becomes a target for a filibuster. So it’s only really a useful tool as long as everyone treats it with respect and uses it sparingly.
But now the question is, whether it’s worse to let it be abused or to not have it at all. I don’t think it needs to be an all or nothing approach. Let’s use sports, particularly instant replay as an example. When it was first introduced, it was overdone, games were slowed down and all kinds of obnoxious stuff was reviewed. So it was done away with, and then there were blown calls and people complained about it. Now, there’s a bit of a middle ground, some things are automatically reviewed, some things are unreviewable, and for the rest, a team gets a limited number. It’s not perfect, but I think it’s a decent compromise. Maybe this idea can be generalized to filibusters too.
So, for instance, we already have some effective automatic filibuster on the types of votes that have additional restrictions. Maybe different types of votes can have different levels of filibuster, so perhaps a tax vote ought to need 60 votes to break filibuster, something really routine like raising the debt ceiling should only need 51 votes, and maybe judicial nominees could be somewhere in the middle like 55 votes or whatever to break filibuster. Or instead or in addition to, maybe also have a limit on the number of filibusters that can be used, so it doesn’t devolve into the case we have now, so there’s enough for the things that really need it but they can’t just be used willy-nilly for fear of not having one when really needed.