That moves the onus to the user to distinguish between tracking and non-tracking uses of cookies and local storage. It also contradicts the principle that tracking requires informed consent.

>Has the legality stopped any of it?

I'd suggest that illegality has in fact stopped most of it. We'd surely have many times as many murders if it was legal to murder people.

False dichotomy. Correct question: Has legality hindered any of it?

(Yes.)

Hindered, but not eliminated. It is not a panacea. As long as people are willing to flaunt laws, laws are not the ultimate solution. The main reason here is that your laws are regional. Someone operating outside the jurisdiction of said law feels not obligation to obey said law, nor feel fear of punishment of said law.

I don't recall anyone saying, ever, anywhere, that laws are a panacea. I don't think that means though that we should stop doing laws.

No... I like laws. They're nice, for the most part.