I'm hoping some of the new emissions tech like the electrically heated stuff coming from Cummins actually works well. The current crop of diesel emissions equipment is much better than the early stuff, but still hot garbage overall.
The goal of most of the current regulations is choking off vehicle availability and affordability, not any actual emissions improvement or positive environmental impact. Forcing US drivers into larger and heavier vehicles with worse fuel efficiency, worse reliability, and questionable powerplant choices is a massive waste of money and resources and ultimately results in MORE emissions.
Many, many drivers would be better off with smaller turbodiesels in more efficient midsize and half ton trucks that gave a reliable, long service life instead of some low displacement dual turbo gas nonsense that craps out early - or trucks larger than they actually need with emissions equipment that fails without a specific driving style. Treating vehicles as disposable is incredibly wasteful; so is the number of people who end up buying a second vehicle as a daily driver because the US is missing an entire segment of pickup trucks.
Rolling coal is dumb but people are rightfully fed up.