Facebook says Apple iOS privacy change will result in $10 billion revenue hit this year

I honestly love the fact that I can deny access to some of my data thanks to Apple iOS. But: isn‘t it scary that Apple can protect my data just like that with a button when all the world‘s regulation (e.g. GDPR in Europe) could not?

Source:
https://www.cnbc.com/amp/2022/02/02/facebook-says-apple-ios-privacy-change-will-cost-10-billion-this-year.html