It seems to me that it is irrelevant how many spike proteins the vaccines causes your body to make considering that most of humanity has had a real covid infection by this point.

The question would be if vaccine followed by covid infection produced more or less spike proteins (and overall health impact) than no vaccine followed by covid infection.

If you assume that hospitalization and death is correlated to overall quantity of damaging spike proteins then the default assumption would have to be that vaccines are highly beneficial.