This is effectively a "think of the children argument". People with health complications will always be at higher risk of bad disease outcomes than the rest of the population. That includes the regular flu, too, and is pretty much guaranteed to include some form of COVID forever at this point. You don't get to use that as some kind of moral high ground to force your personal stance on everyone else.

Educate people about the low risk and high benefit of getting vaccinated. Encourage them to do so as a generally good thing for society. But framing it the way you are right now is not just unhelpful, it actively makes unvaccinated people think you hate freedom and don't give a damn about anyone's personal opinions.