I get it completely - in your agenda you are number 1 and the rest don't count. If that is your philosophy then fine but be open with it don't hide behind the 'my body is a temple' thing.
What YOU are failing to get is that one either plays a positive role in our society or one doesn't and in this case playing a positive role is getting vaccinated unless of course you have a strong medical case not to. It worked for Polio, TB and things like measles , mumps and rubella , the points that you keep ignoring and go back to the seat belt COMPLIANCE example.
You are lucky if you have never had to take ANY tablets in your life as that is not the case for most and there are a lot of vulnerable people out there. I have also seen the affects of long term COVID and how it cripples people.
Me not a 'thinking' person (so funny). I am thinking about other people , give it a try you might need help one day.
And I salute also....