I am pretty good at separating what I emotionally want from what I objectively analyze in politics.
As, I personally love Trump and have supported him from before he announced and I totally disagree with the RFK Jr. policies and appeal but see that many voters will find him appealing. And many voters illogically desperately just want someone new-—which is how conmen take advantage of people. His voice is bad and he hesitates as he speaks and isn’t handsome. But is new.
Even if RFK Jr. deflated only a percentage of Trump support in a state, like the Perot effect it could mean loss to the Dem nominee (whomever it is). Even the Libertarian 1-4% could ruin a 50-50 tossup state for him.
That was Clinton's big selling point in 1992. He described himself as "a change agent."
After 12 years of Republicans, many independent and moderate Americans wanted "a change," if only for the sake of change.