I've personally been vaccinated against COVID-19. But I'm philosophically uncomfortable with the government being able to require me or my family to submit to

I've personally been vaccinated against COVID-19. But I'm philosophically uncomfortable with the government being able to require me or my family to submit to an injection or any form of medical treatment. Creating a bunch of second-class citizens who can't access education, employment or travel seems like it's just a bad idea. I do have a few doubts about the vaccine: - If the vaccine's so safe and effective, why do the vaccine companies have a liability shield? - Why are so many medical workers, who know more about vaccines than I do, and see COVID deaths every day, refusing the vaccine? What do they know that I don't? - If the years of testing traditionally required by vaccines were always deemed a necessary safety protocol, isn't skipping them essentially gambling that the COVID vaccine doesn't have long-term side effects? - Why will COVID vaccines eventually require boosters? Why don't they do what they did for measles and polio and whatnot, and make a vaccine that lasts a lifetime? - If I'm not given reasonable answers to these questions, and instead told "Shut up and take it, or you'll lose your job, your kids will be forced out of school, and you'll never be able to get on an airplane again," why is it so unreasonable for me to conclude that maybe someone somewhere in the government or the big pharma companies knows the answers to these questions are, shall we say, not exactly reassuring? Vaccine mandates are bad policy and dangerous precedent.