I think you're justifying a really extreme reaction based on the worst behavior of a few companies. GDPR doesn't just go after data-resellers. It targets how a well-intended company can use and keep your data even with no third party involved.

Laws that mess up the good-guys lives are bad laws. GDPR is from the same folks who thought a law that lead to pestering users about cookies was a good idea.

I might say yes but I still want an impact study.

I prefer governing bodies operate with an awareness of how their actions affect society.