This is an interesting way to frame the generational split in the Democratic Party. If you're below a certain age it's impossible to see Trumpism as anything but a wildly successful permanent remaking of the GOP, whereas people above a certain age still often see it as a temporary state of affairs.
Something I think that underlies a lot of debates within the Democratic party and center-left right now is whether or not you think Trumpism has been successful as a political and ideological project. (Not, obviously, whether it's been good or not).