The problem with that logic is, because the EU was a good global citizen (at one point), everyone has reciprocal treaties to allow extradition and cross-border

The problem with that logic is, because the EU was a good global citizen (at one point), everyone has reciprocal treaties to allow extradition and cross-border charges. And the GDPR actually applies to any website accessed by EU citizens so banning EU IP addresses still leaves you open to the case where an EU citizen residing in the US has a GDPR claim against you. Maddening, but that's the reality of this silly law.