Yes, it takes time to rehire people and rebuild institutional knowledge. But again, let's get back to the topic at hand. What the hell does that have to do with a 60 vote threshold?

Republicans can destroy a department by zeroing out the budget and firing everyone with a simple majority. Democrats can rebuild it just by refunding it with a simple majority. Obviously it is harder to build than to destroy, but that's an irrelevant platitude here.

The problem is Democrats often refuse to rebuild things that Republicans destroy, and then folks like you defend them saying that it's because they never have enough votes. They just need more power, and they'll be able to solve it, there won't be a rotating villain of the week this time, we promise!