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That is a very loaded question. The easy answer (in a vacuum) is YES. But we aren't living in a vacuum, but in a SOCIETY. And in a society you have BOTH individual rights and OBLIGATIOINS. That is what most of these right wing zealots forget. You have the right to yell "Fire", but NOT in a crowed theater. You have a right to decide what medication you take, but you can't send you kids to school without measles and polio vaccines.
So if you DON'T want to vaccinate yourself for a virus that has killed almost three quarters of a MILLION Americans in less than 2 years, then you should be willing to forfeit some of your rights to live in that society that you would be threatening. That might take the shape of wearing masks, keeping yourself away from crowed places, not being able to go into work, etc BUT if you are going to be a threat to society, then wouldn't you expect that society to protect itself FROM you?
So yes you DO have the right to say no, but you ALSO have to expect the consequences of a society that feels the need to protect itself as well. If you are OK with that, then I'm OK with you. The problem is that there is a small but significant minority that wants it BOTH ways. They want their rights as individuals, but also say FU toward the rights of their society to protect itself. All rights, no obligations. That sound right to you?