More and more, it's obvious that the same small group on this forum are posting endlessly about how "dangerous" the vaccine is, how any vaccine mandates are an infringement on human rights, and so on. They love any statistics that show breakthrough cases (even though they are nearly always mild and uneventful), and joyfully come up with very dubious stories about people dying after receiving the vaccine. (Even though the vaccine had nothing to do with their death; everybody eventually dies of something).
This is the same contingent that loves to make fun of scientists, physicians, and pharmaceutical companies, all of whom are working overtime to keep us alive. There is a strong element of paranoia in this ("they are injecting poison into our bodies!") and a pathological fear of injections comes through. With some it's political, with others it's trolling (looking for fights) via constant sneering and taunting. And with some, there is a belief in horse deworming substances instead of the amazingly effective and safe vaccine.
Most of this stuff was promulgated and is continued by Fox News and other right-wing media. We all listen to, read, and believe whatever makes sense to us. If utter nonsense, and frequently lies, fit in with our belief system, we believe them anyway, and see ourselves as heroes in further spreading the lies. And that's where the Internet and its social media can be very dangerous. People who are a little bit naive can be led down very dangerous ways of thinking, and it spreads exponentially, much as the virus does.
If someone has underlying health issues that prevent them from tolerating the vaccine, I sympathize. But it seems to me that someone in that situation would keep it to themself, as a private health matter. Maybe it's appropriate to discuss it with their family, immediate friends, and their doctor. Maybe mention it once in a forum, if helpful to other people. If you are allergic to, say, penicillin and other antibiotics, would you conduct an endless campaign against the medical use of antibiotics? Why the constant propaganda-spreading against the vaccine that the great majority of us can and do get, thankful that we are protected against a horrible death from this killer disease? It's like a soapbox that this tiny segment never seem to get off.
I should add that by now, the majority of Americans (and probably most of the developed world) have received the vaccine, and many are also getting boosters. So what is there to still argue about? The rate of new cases, and the rate of death from Covid-19 keeps going down, very much in sync with the rate of vaccination going up. And for anyone who has harbored doubts about the effectiveness of this vaccine, that statistic should be enough to convince you.