

I mean vaccines aren’t always 100%. If you’ve been vaccinated you’ll have a much stronger immune response, but it is still possible to get measles if you’ve been vaccinated. 2 doses of the MMR vaccine is on average 97% effective in preventing measles infection (per Mayo Clinic https://www.mayoclinic.org/diseases-conditions/measles/expert-answers/getting-measles-after-vaccination/faq-20125397).
The bigger issue (like with Covid shots, flu shots, and everything else) is that there are elderly & immunocompromised folks who can’t get vaccines. Their immune systems aren’t strong enough to handle the small dose in the innoculation. So the only way those people are protected is through herd immunity, relying on the rest of us to protect ourselves and our community.
Per Careless People, the recent memoir that this article pulls from & facebook has been trying to kill, this was one of the many unethical advertising schemes that ultimately traces back to Sheryl Sandberg. A woman who didn’t allow her own children to use fb because she knew she was making it a toxic capitalist hellscape.