Simply put, I have no need to fear getting covid due to my age and level of health. Therefore, it's my choice to not put something into my body that I don't want to. Everyone should have that choice. The same way people have the choice to drive fast, drink alcohol, etc. (Yes I know the response "and they have the choice to deny you entry, etc. etc.")
Studies have also shown harm done by vaccines, sometimes those studies are suppressed, sometimes not. Anti-vaxxers take things to the extreme, but pro-vaxxers do to.
Let me ask you something, without malice. Why should someone who has next to no reason to worry about covid get a vaccine? Life has risks and it's not my responsibility to keep other people safe. And nobody can say that is selfish if you've ever gone over the speed limit, drank maybe a little too much then drove home, and so on.
Do the 70,000 people who die every year from the flu not matter? If they do, then masks and distancing should come back every flu season, right? The people who are all for vaccines and masks for another few months don't mention this from what I've seen.