Is this a trick question? Humanity survived by having enough people with enough other useful traits (like thinking, including the ability to reason about disease and how to prevent it) to overcome the numbers lost to disease. Humans died to disease in enormous numbers.
> nor that they're all good for _me_ as an individual.
Herd immunity presents a real challenge to idea that people should generally be allowed to make their own choices. One's choice here affects everyone else, in a minuscule way that nonetheless adds up to many thousands of lives saved. I'm not sure what the answer is for this, but generally I come down on the side of: if a democratic process creates rules requiring us all to be immunized for the common good, that's okay with me.