Waning immunity, evasion,
the time between infections and danger.
You should find this graph concerning if you know that vaccine-acquired immunity wanes over time.
It just makes me wonder. What's worse for you, to catch Covid once every six months, every year, or every two years?
If the answer is " not get it at all", then yes, you're right.
No science, no plan, no understanding of how it's going to work, just hope.