You do realize you only see the cookie banners because the companies are now forced to show you one? It's not like they started collecting shit only after the GDPR nor is it entirely illegal and unethical to sell user data. The point of the GDPR was to make users aware of which websites are selling which data and give them an avenue (be that declining cookies or leaving the site) to prevent that. Corporations then designed their way around the wording of the GDPR to make declining cookies as difficult as possible which is why we're seeing this push for a revision now. The goal still isn't to make user data based financing impossible, it still is to prevent users from being pushed or bullied into selling their user data against their will.