Replying to your edit:
> consent should always be required, but if you don't consent i shouldn't be legally required to service you. GDPR is more than just consent hence the overreach
Yeah, and in a world where companies were not abusive, it would work that way. As it is, we both know perfectly well what happens - companies have leverage over users, and they'll use it. They'll make you consent to every kind of data abuse and sharing to use the service, exploiting the fact that giving up privacy doesn't feel like it's hurting at the point the data is being taken. GDPR is designed to remove that leverage - to make it unable for companies to extract arbitrary consents on the threat of refusal of service.
This only really affects you if your business model was baiting users with "free" services, spying on them, and selling that data to adtech industry.
> The NSA has more data than any single actor on the internet, we can't possibly claim that private surveillance is worse. The NSA may have a better profile of me than any private actor even though (and especially because) i m not american. And their profiling can harm something that businesses generally don't care to harm: my freedom
Sure, so NSA may have pulled in your e-mail history at some point in time. But it's mostly sitting there. NSA doesn't care about you unless make yourself important to US national security. Adtech surveillance, on the other hand, track you constantly, through pretty much every device you have, every site you visit, and makes use of your data all the time. And all in all, this data might at some point finds its way to NSA too, already nicely packaged. NSA vs. adtech is kind of like choosing high potential loss but very rarely, vs. low loss all the time. I'd say the expected loss is worse with adtech, but I'm still happy GDPR will make the life difficult for both.