For many reasons indeed, this is broad topic and GDPR doesn't change anything if we are talking about big US players and their domination. None of them is getting out of EU.

> And I am afraid GDPR has just added another one.

I disagree, it's the other way around. Small single person companies/developers that will get out from EU market will could only strengthen local market. Any other US/EU/outside EU startup/developer can fill that void.