“Earnestness is cringe” is just the mirror image of “cynicism is savvy” and the matching partner to “lol nothing matters” which is the fertile ground for fascism to grow. Hope is cringe. Progress is cringe. Change is cringe. Getting together with other people and imagining something better? Cringe.
i also wonder if part of the backlash was that we've decided obvious earnestness is 'cringe' &, like, look at the world around you. do we like the alterative? getting back to a sane & just world will involve a lot more of things we dismiss as cringe now