I did find this. Although info on his abortion views are elusive I can’t fault him for his contempt for Planned Parenthood.
“Kennedy’s nephew Robert is a wiser, braver man than his uncle. He has the courage to buck his family and his party on any number of subjects, including Planned Parenthood — a “neo-progressive organization” founded, he writes, by “the racist eugenicist Margaret Sanger to promote birth control and sterilization and to purge ‘human waste’ and ‘create a race of thoroughbreds.’ ”
https://spectator.org/rfk-jr-book-review/
That’s interesting.