Are the norms good and desirable in a good government sense? If yes, are they things which wind up holding us back when the other side has abandoned them? If yes, does abandoning them ourselves lead us to a better place or does it enable more racing to the bottom?
Michelle Obama: When they go low, we go high.
For example: We liberals would never hold up confirmation of a Supreme Court justice for a year.
Look where that got us.
We never really had the chance. They didn't filibuster Roberts and Alito, but Bush's Republicans would have junked it to get those confirmed. They did filibuster Trump's justices, but then they DID change the rules to eliminate it.