That's the really sickening thing about this, there are people who legitimately can't get the measles vaccine, and they're dependent on enough people who can getting it to protect them (I think the WHO target is 95% to get to and maintain measles elimination).
I should add, though, that even people with the measles vaccination aren't entirely free from risk. I might have mentioned it before, but I got exposed to measles when I was 18. Fully vaccinated when I was a kid, didn't really notice it, had a bit of a temperature for a day, no rash or anything, but then I was exhausted afterwards. Blood test showed it was measles, and diagnosis was post-viral fatigue/CFS (bit like long Covid). Took over a year to get back to the point where I could resume studies, and years more to get to a point vaguely approaching normal.
Anti-vaxxers are going to cause a lot of unnecessary damage to people's lives.