The most important point is that being vaccinated means you are far less likely to get seriously ill if infected. As in about 99% of the hospitalized are unvaccinated.

My understanding of it is that, if you are vaccinated you can still both catch and spread all strains of the virus. BUT, IT IS MUCH LESS LIKELY. That however will be very hard to explain to the anti -vac crowd, especially the religious fundamentalist section, since they have been trained for years to think only in terms of absolutes, good and evil, black and white, etc.

It is certainly very doubtful, that many of them have been encouraged to study probability theory, since it does not sit well with faith based teachings and belief systems. Which would not be good for the pastors, casinos, on line conspiracy theory groups, or any of the many others, who set out to exploit those failed by the education system.