Earlier quoted context omitted.
No that's not P-hacking. The majority of US residents have been infected at this point. The sizes of those population groups both with and without serious pre-existing conditions are so huge that there is minimal chance of an incorrect random result. Your link is not relevant to this issue so I don't know what point you're trying to make. To be clear I support vaccination. But patients should make their own decisions…
Right, you have a hypothesis. But you don't have data. Trying to tease out evidence for your hypothesis from existing data by slicing the data set up is the very definition of p-hacking. If you refuse to believe existing work on the basis of an unmeasured hypothesis, well, that's a different sort of logical fallacy on top of the bad statistics. And FWIW, if you want a more complete (but much less amusing) explainer o…
For example, peanut allergies don't exist because most people don't have reactions to them. You absolutely can ask the question for if peanuts are good or bad for a subpopulation.
The alternative is just sticking your head in the sand.