There is no EU cookie banner law

You know those modal screens that interrupt your groove when you are surfing?

There are no laws forcing websites to use them.

They use them because they choose to.

Bite code!

Cookie banners are not only not required, they're not even needed, and most implementations you encounter today are illegal anyway. You can use session cookies and anonymous stats cookies without needing any user approval. Companies like to use these cookie banners because they want to make you mad at the law, not at them for tracking you up the wazzoo, and people who actually do know better trot out the cookie banners to enrage you at the government instead of at the corporations exploiting you.

EU law only states that if a website wants to track you, they have to let you know. That's it. Seems very reasonable to anyone who isn't a corporatist.