Fillibuster Deal

I see where Democrats caved to save the fillibuster. They should have let the whiny Republicans get their way cause the one thing that people are failing to realize, if the Republicans threw away the fillibuster, when Democrats eventually regain control of the senate(which will happen) they can do the exact same thing. Imagine how the deomocrats would be compared to Hitler and how the right would say how it undermines democracy?? Something to think about