I think those areas with rust issues should just make it legal to run these tires. Increase the vehicle taxes a bit to compensate for chewed up roads and unlucky pedestrians, and be happy with cars that last a lot longer.
UNLUCKY PEDS.....
It seems to me that this road salt is a way of life that is now built into local government economics and they feel like there is no going back, would seem from various posters that the weather etc has zero to do with it. People in the NE have lived these commute heavy, city centric lives for a long time and seem reluctant to spend a few days sitting at home or doing without. The current pandemic just shows more of the same with parents demanding that kids be sent back to play contact sports or have in school instruction.