You can add the development of drug cartels now in Europe which lead back to Beirut. As that developed in the 1990s, it became a much different place than what it existed in the 1960s.
Wouldn’t shock me in twenty years if it broke up into five different mini-kingdoms with the Muslim radicals, the drug cartels, and other groups each owning their own neighborhood.
The concern until Syrian troops withdrew was that it would just become a de facto part of Syria itself.
I recall when the French military evacuated many of the Christians as the civil war wound down; another post-colonial failed state.