“I wonder what kind of enforcement entity the ICC has for warrants for arrest”
I believe every country in the EU would have to turn over to the ICC any person the ICC has issued an arrest warrant for.
The ICC might also have EU countries impound vessels and aircraft used to transport weapons to Israel.
The Knesset needs to pass laws against potential judicial criminals before they try to overreach.
Again, what kind of enforcement entity does the ICC have to enforce its warrants? As for the EU, it is falling apart, especially with some participants getting fed up with their own emigration policies. While England has officially pulled out of the EU, it's too late for their culture/society. Germany, France, and some smaller nations are experiencing the same cultural death. Hell, we're encountering it in a couple of our own States.
Diversity is turning out to be a suicide policy. That's why Japan and some other nations have laws/policies against mass emigration.