While “clever” seems to be a descriptor with positive connotations, I think that most people would agree that in terms of game theory defecting in the matter of vaccines in a community with no instances of a disease might give one a tremendously small advantage over the vaccinated. However, given that travelers from areas of high measles rates can bring the disease into an area of low incidence, it is probably a case of penny wise pound foolish.

https://www.cdc.gov/measles/cases-outbreaks.html

Surprised this was downvoted. From a purely self-interested perspective it makes sense. For anyone who's not aware of the (very low) risk of harm from various vaccines, see https://www.cdc.gov/vaccines/vac-gen/side-effects.htm. "Life-threatening severe illness with organ failure (about 1 person in 250,000). More than half the people who suffer this side effect die.", for instance, is a side effect of the yellow fever vaccination, which might still be a higher chance than the chance of catching yellow fever, especially if everybody else has been vaccinated against it.

Of course it doesn't hold so well when not everybody else has been vaccinated, as then the chance of catching the disease is higher. That's presumably why OP added the qualifier "everybody else is vaccinated".

Except that antivaxxers proselytize, vastyly increasing the likelihood of crippling or killing their own unvaccinated crotch-spawn far beyond the ~one-in-a-million risk of injury inherent in vaccination.

Sorry, but anti-vax is not an exercise in Game Theory; it’s an exercise in narcissistic shit-flingers indulging their malignant ignorance and delusions of control; and fuck everyone else, including their own children, that pays the price for their depraved indifference.

"There is a risk of harm from the vaccine itself" - A very low risk. And the risk from the disease itself is much higher.

Executing that strategy has a cost much higher than the risk of vaccine complications. So it's not the best strategy by any means.

is is beyond being an egotistical and cynical POV.

besides, if this is true then you shouldn't publicize anti-vax, because this means "not everyone else" is vaccinated.