And then legislation required those consent boxes back, so everyone built their own, instead of demanding that the default should be changed back.
Even simply changing the user agent was sabotaged at Firefox, and choosing one user agent per domain is wishful thinking.
I doubt politicians care much about fingerprinting, though. They're more afraid of actual businesses getting attacked by bots than they are about Linux users with weird setups not being able to access some websites.
b. Accept Only Necessary Fingerprinting