I don't see how a chaotic Italian parliament "would destabilize not just Italy but Europe as a whole".

The joke that any disagreement between two Italians results in the formation of three new political parties is decades, if not centuries, old. Berlusconi's mystifyingly long and absolute grip on high office was the exception, not the rule.

Stability is in any case a peculiar attribute for any democrat to consider a virtue. There's nothing more stable than a dictatorship, while it lasts.