Hardly. There's absolutely no reason whatsoever that vaccinated people have to fear anyone without a mask save for others who don't get it for one reason or other. Some just don't want to take it untill all side effects are known. It's their body, their choice.
It's overkill.
Unvaccinated people (who lack immunity) are more likely
to be carriers with a high viral load. And because immunity
isn't perfect, un-vaxers pose a threat, albeit smaller to
vaccinated people.
It's their body & their choice. But it's our choice (as business
owners & employers) to require masks &/or vaccination if
they want to interact with us.
BTW, Covid has side effects too. Death is a common one.