San Marino is the same…one tiny slither of beech and a tideless sea line full of rocks.
Sounds horrible to me, but if the people want it they should try to keep it the same way. I like deserted beaches with no concessions or deck chairs. I wouldn’t go to Italy for the beaches.
Definitely a first world problem! Try Sicily where they have these areas but not whole beaches fenced off.
An interesting but long article that doesn’t seem to investigate corruption and mafia involvement that one might expect.
I have been to the beaches near Pisa which are very densely packed but one was free, however the private ones do offer what many enjoy.