Claiming tracking cookies as "necessary" is often illegal under the GDPR. This is an enforcement problem, not a problem with the law itself, or the EU.
"Necessary" means "necessary for fulfilment of the contract". Your name and address are necessary data when you order off Amazon, your clickstream is not.
"Necessary" means "necessary for fulfilment of the contract". Your name and address are necessary data when you order off Amazon, your clickstream is not.