Most people under the age of about 65 are being asked to take a vaccine for a disease that is extremely unlikely to hurt them, and the vaccine itself can have severe side effects, with deaths and injuries from these vaccines now greatly exceeding the deaths and injuries from every other vaccine programme in the last 10 years combined.

Over-simplifying this situation down to "people need to be protected [from themselves]" is exactly the sort of misinformation that Facebook believes it's fighting.

"This leaves the latter group stumped, because they can’t think of any non-selfish motives"

Non selfish motives? Their demands are incredibly selfish. They've convinced themselves, against all actual data and biological theory, that the unvaccinated people are dangerous to themselves, the vaccinated, and thus individual choice over people's own bodies must be removed by force. There is no basis for this belief but they apparently want to reach this conclusion via any means, fair or foul. Despite that they are the same people who are usually insistent that women be given choice over 'their own bodies' in abortion debates.