By what one believes is shown by what one does, and Rome treated and treats such as members in life and in death, as Kennedy examples. The pope even thanked him for his prayers, and offered no reproof to this impenitent soul, and gave him an apostolic blessing, and a church funeral, thus teaching others how Rome sees such.
Rose Kennedy was certainly the exception to this otherwise thoroughly disgusting clan.
Do you know if he re-converted on his death bed and was given the Sacrament of the Anointing of the Sick?
I don’t — perhaps that happened, and so I can’t really judge. Can you?