As Italian I am extremely pissed off with the current situation but every big team had its bad periods in history, there is not a single team that has been getting results for 50-60 years in a row, it's simply not possible, things change, just like there are golden generations there also are bad generations, it's like a wheel. National teams, clubs, it doesn't matter, it's like that for everyone.
I think something, that European countries including Italy are rapidly needing a Young population, that they should give more opportunities to people from other countries to be able to settle , only those immigrants who do contribute to a country and that they are given facilities to have a Family and make a life there, I think that would help a lot, but Italy's problem is escalating very quickly to worse.
There is a process in order to become a legal resident in Italy, in Europe, and in any other country of the world. Proposing to let people in from other countries just because there is a demographic downtrend makes little sense. If you want to move to another country you must bring something with you: money, skills, etc. Letting poor people in is just going to create more and more problems because many illegal immigrants just ask for money and shelter, they have no intention of working, no intention of integrate, no intention of paying taxes, they just want to exploit the system. It doesn't work like that.