Thank you. But even if spike proteins were the only choice, which I know you are not saying, given the global reach and regionally-speaking random distributions, it is impossible for the vaccines to prevent infection more than they do interact with wild variants which accelerates learning about what is different.
Forgive me, but honestly, doesn't this shout perpetual pandemic from early 2020, and certain endless rounds of inoculations when months later the variants were in the tens of thousands and cocktails had to start being formulated.