I think your take and mine are both reasonable and based on different interpretations of tradeoffs.
With the original vaccine doses, you and I probably agreed. There was a somewhat objective case to strongly encourage vaccination of everyone. The alternative was to remain in lockdown indefinitely or risk some sort of collapse of the healthcare system.
Now, though, as we consider the booster, I think the choice is less objective or obvious. Our healthcare system is not at risk, and we can largely be free of lockdown with just the vaccine. There are real cons to a booster, including normalizing government mandates and not vaccinating the rest of the world. Some people may choose to have the peace of mind that comes from a booster. Others may choose not to. I'm hoping, though, that we can agree that mandates are not the way.