The CHD Fund has actually caused measles outbreaks that have killed kids. And this was prior to Covid.

https://arstechnica.com/science/2019/12/measles-outbreak-spurred-by-anti-vaxxers-shuts-down-samoan-government/

I think US-ians can question why they have 3x the number of childhood vaccinations compared to France (IIRC), I don't think there was much point in most people under 40 being vaccinated for Covid (none after Omnicron became dominant), but that's not the message RFK is preaching ...