I don't really know much about him except that everyone seems to hate him too.
Unrelated ramble: This election reminds me of the leadup to the election that Ventura won in Minnesota with 2 guys everyone hated leaving it ripe for a weird third party to win. I don't suspect RFK could pull it off, because I think Ventura's celebrity and centrism was an important part of that formula.
Even if a third party candidate won the popular vote, it would be nearly impossible to win the electoral college. If RFK wins any states, it will be unlikely that anyone gets to 270, and then the house picks the president and senate picks VP.
"our candidates were so unpopular, we had to choose the president ourselves" is peak america.