Tire inspection is still part of vehicle registration inspections. You can’t delay more than a year, and states can always require a tire change within a certain % of being totally worn out if having tires within x-% is showing evidence of causing more accidents.

Unless the argument is that any additional cost will prevent people from performing maintenance. Like, “gas prices can’t go up because people will stop buying gas”. Or “if you make registration more complicated, people won’t register their cars”.

Taxes in the US also have a precedence of decreasing as you get into higher values. There is nothing saying taxes can’t be a higher % on low quality tires. Buy a better tire that last longer, lower percentage tax tier. The point of taxation is to deter behavior you don’t want while recouping the cost of operation over time. Cheap tires that only last 1k miles can be taxed at a much higher % than those rated at 50 or 100k miles. We do that shit all the time.