I don't have any particular problem with RFK Jr. I mean, he appears a bit of a nutter, but neither Biden nor Trump come off as particularly competent, partly due to age. What I state, categorically, is that the U.S., as a republic, is set up with two main parties, and independents never win, but skew results, usually in favour of the currently nuttier of two parties, which would (currently) be the GOP.
So, thank you to a weak link in the Kennedy weak chain, really, for handing the election to Mr. Drumpf. I have an instinctive distrust of "families who fancy themselves", and the Kennedys are no exception. Apparently, the Drumpfs are no better.