You don’t want serious pathogens breaking out among tightly packed pre-scientific populations, some of whose leaders and followers refuse to acknowledge the legitimacy of state authorities.
It’s really that simple – here in the States, or over there.
Both countries, having failed to deal firmly with the problem in its early stages, are now forced to try more extreme measures as covid flares up.
Measles, hepatitis, herpes – Ultraorthodox Jewish communities have been in the news for outbreaks of these recently also. Vaccination is like … what? Who needs it. And if you stop our mohels from sucking our infants’ penises we’ll sue.