It really depends on how heavy handed they get in their enforcement actions. Everyone knows that FB and Google are expending serious resources to be in complia

It really depends on how heavy handed they get in their enforcement actions. Everyone knows that FB and Google are expending serious resources to be in compliance yet they will more likely than not get some large fines anyway because politics. I doubt they will ever leave the EU but other, smaller, companies will not have the resources to throw at the problem so will be effectively locked out of the EU market. It's probably in Google's best interest to pay a couple billion euro fine (to scare off the smaller fish) in order to lock in their de facto advertising monopoly.