I don't think you should be fired for it but I also understand why large companies did it to make sure all their employees were safe. My company also required that we be vaccinated to come into the office because so many of our New York employees were afraid to come in, because NY was ravaged if you recall. But rather than fire anyone, he allowed people to work remotely if they didn't get vaccinated.
We can't make you care about public health but it would be better for everyone if you didn't resist it so stridently for, let's be honest, political reasons.