You are willfully deluding yourself if you believe that. He put an anti-vax idiot as head of HHS. How is that "nothing"?
See my other responses. Do you really think RFK could possibly have had an effect on vaccinations over the last 2 decades in the US OR Canada?
Since you seem very emotionally opposed to Trump and his administration: I also don't like Trump or RFK! However, to solve a problem, you have to find the root cause of the problem, and pointing at the most recent politician you hate will never help anyone.
He was appointed and holds those views because these ideas are now popular... not the other way around.