As I recall, in the hypocritical world that is Washington DC, it is always Democrats who have gotten the filibuster-weakening ball successfully rolling. It was Harry Reid during the Obama years that eliminated the filibuster on approving lower federal court judges for Obama. When Mitch McConnell later extended doing so to approve Trump’s Supreme Court justices as well, the Democrats howled. Now the Dems want to eliminate the filibuster all together, and should they do it, it might well be the end of our republic since they’d have free reign with mob rule this year to usher in all sorts of autocratic rules and laws (voting rights for all, to start, with ballots published and sent freely to everyone regardless of citizenship status) designed to relegate the Republican Party to a permanent, impotent status.
This time, if the Dems are successful in totally eliminating the filibuster, they will likely be able to fix things so they’ll never have to worry about it coming back to bite them in the butt.