We have laws against murder and yet people commit it all the time. What kind of argument are you trying to make?
Both Google and Facebook have been hit with lawsuits in the EU. The laws are there and companies violating them are being punished. One could argue that the punishment is not large enough, if companies still repeatedly violate the laws. It'll take some time though until we see whether companies change their stance on privacy. One company which doesn't need any 'encouragement' is Apple, that's pretty clear now.
Whether what they are doing is legal or will go unpunished remains to be discovered. In the meanwhile there is a considerable increase in public awareness of (e.g.) how creepy facebook is (I know that the biggest facebook competitor is instagram, but there is a real difference between how people interact with the two platforms and also in expectations on how much public your profile and post are)
> In the meanwhile there is a considerable increase in public awareness of (e.g.) how creepy facebook is
Every non tech person I know has some notion of FB being creepy but not a single one has changed their online behavior in any way. Everyone cares until it's actually time to delete your account.
Anecdotal I know, but I know of several people who now refuse to install the Facebook app on their phones (instead using the website) because they don't want "Facebook listening in on their conversations"
Yes, but they have been already fined in the past and law enforcement is keeping an eye on them. This could be better of course, but keep in mind that the GDPR is still a new thing and enforcing it requires time.