And now they're reaping the whirlwind. Remember this from 2013?
Weakening the filibuster weakened the institution of the Senate and strengthened the Presidency, regardless of which party holds the majority in the chamber. It was a short-sighted decision by Harry Reid and the Democrats, taken for partisan advantage, and the Republicans doubled-down in 2017. De-escalation would would require the parties to trust each other, but that's impossible in the present political climate.
I personally think America would be better off with a stronger, more active, less risk-adverse Congress. The omnibus spending bills, partisan oversight committees, and delegation of lawmaking powers to the executive bureaucracy are all dangerous, and can generally traced back to the 17th Amendment which established the popular election of Senators. There's no panacea, but repealing the 17th Amendment would be a good start at fixing the current mess in the Senate.
