Since the death of Joe in WW II, and the murders of John and Robert, the Kennedy saga has been nothing more than a story of wrecked lives.
The fabled "Curse of the Kennedys" has been brought on mainly by their own behavior.
...which has been very un-PC to talk about.
Even before that the Kennedy men, were known as womanizers, verging on or actually becoming whore-mongering. Ensign JFK, then working in Naval Intelligence, was recorded, by the FBI under Hoover, having sex with the Swedish wife of a known Nazi sympathizer. (See the book Wedge: From Pearl Harbor to 9/11--How the Secret War between the FBI and CIA Has Endangered National Security by Mark Riebling.