But seriously, if anyone had doubts what GDPR will achieve, I think this person is pretty naive. GDPR is not a progression, but a regression, and it will seriously hit (already does) online businesses in the long run.
Same thing with cookie warnings. No normal person will read tons of legal text on every website they visit. And even if the normal person will read it, they won't be able to decline the cookies, because the site will not work. But let's say you're a technically savvy person that is actually interested in cookie privacy; I'm really surprised you're not using "cookie autodelete"-style plugins already.
Creating laws only to have laws will never work. It only creates cost for everyone in order to be compliant. And people always go where the cost is lower.