Is it important to punish Republicans for obstructing Merrick Garland? I hate to say this, but Im afraid its time for some
game theory. In the 1980s, the game theorists Anatol Rapoport and Robert Axelrod found that if you play the famous prisoner's dilemma game (where cooperation helps both parties but they face strong incentives to defect) again and again, one of the best strategies you can use is "tit for tat": do whatever your opponent did the last time.
As political scientist Seth Masket points out, in the case of the Supreme Court, this implies that Democrats should respond to the obstruction of Garland by obstructing Gorsuch. In the long run, tit for tat produces more cooperation than the alternatives, and showing Republicans that Democrats won't tolerate that kind of obstruction could have some long-term benefits for the party.