[tpm]

> there is now an EU public prosecution

That only prosecutes the misuse of EU funds (and perhaps the EU VAT border regime?) and even then only with cooperation with local prosecutors. In addition, the EU prosecutors are from the participating member states - several EU members are not yet participating.

> EU Commission probably does 80% of the work it would be doing if the EU were.

It's very far from that; notably health-and-safety enforcement is largely in the jurisdiction of members states.