Your response is sophistry aka fucking around with context.

Short answer:
No. Measles vaccination does not prevent death from measles in 100% of vaccinated individuals—but it reduces the risk of infection and death very dramatically (≈97% protection against infection, and even higher protection against severe outcomes).
1) Effectiveness against measles and death

Two doses of measles (MMR) vaccine are about 97% effective at preventing infection
That means ~3% of vaccinated people can still get measles (“breakthrough cases”)
However, vaccinated people who do get measles:Usually have milder disease
Are much less likely to be hospitalized or die

At the population level:
Measles vaccination has prevented ~59 million deaths (2000–2024)
Historically, before vaccination, the U.S. saw 400–500 deaths/year; now deaths are rare and mostly in unvaccinated people

👉 So:

Protection is very high, but not 100%
Death after vaccination is possible but extremely rare

2) Important nuance (this matters for your question)

The claim “100% prevention of death” is not accurate for any vaccine or medical intervention.
Even with high effectiveness:
Some vaccinated individuals may not develop full immunity
Some are immunocompromised

Rare breakthrough infections can still be severe
So the correct statement is:

Measles vaccination greatly reduces (but does not eliminate) the risk of death.

So Mr. Kennedy's statement is accurate.

BTW: Mr Kennedy does not require defense, nor would I do so. You are simply wrong Also, for fits and giggles, depending on who you ask, around 600-700 people a day die in the U.S. due to medical mistakes and "angels of death" (serial killers in scrubs). Now keep this in mind the 'angels of death' is a very hard one to pin down but in light of recent revelations made by some medical professionals about how and what type of care they would provide for people who do not agree with them, is fairly problematic, don't you think?

It would appear based solely on the numbers that medical mistakes are the greater risk to society.