I assume J. Elkann is a Jew because I saw his brother, Lapo, saying in one of the interviews that he's one. Exor and Rotschilds are both the shareholders of "The Economist" so I suppose they have a relation.
Italy as a country is one of the most in debt country in EU. I assume most of their debt is with the international banks (Rotschilds). So you can assume their fate is dependent on these banks.
If Italy's justice system is trying to fuck with Jews' business, then maybe John should politely remind them they have them in their pocket and they should fvck off.
The theory shall not be taken seriously though