You are suggesting that the EU is picking on the outsiders. However, do you have any proof of that? For example, if you look at fines handed out by the EU, some of the largest ones concern companies from the EU:
https://www.cnbc.com/2017/06/27/the-largest-fines-dished-out...
If you look at EU court decisions concerning privacy, you see that it mostly concerns European companies and government bodies (e.g. people storing their fingerprints being stored for passport applications). Those cases just don't get as much exposure in the US:
https://ec.europa.eu/anti-fraud/sites/antifraud/files/casela...
Another factor here may be that EU companies generally stick more to privacy rules, because it is easier to get sued directly by their citizens. E.g. in Germany many institutions and companies are paranoid when it comes to privacy and go out of their way to avoid lawsuits.
