Which part of New Yorker magazine’s new piece on Robert F. Kennedy Jr. is the most unnerving? His decision to stash a dead bear cub in Central Park a decade ago is getting all the attention today. And we’ll explore that. But how about his allegedly groping the babysitter in his kitchen pantry, running his hands along her hips and breasts when she was 23-year-old, and he was a married 45-year-old with five children? That’s an unwanted advance that might qualify as sexual assault if the statute of limitation hadn’t run out, according to a former prosecutor quoted in the piece. RFK Jr. texted the…