Now that the original thread is flagged and hidden, we can discuss without fear.
In capitalism, the incentive of the manufactures to maintain product quality is that people won't buy the thing if it is bad, or does not appear to work.
This cannot be cheated. You cannot "bribe" a population.
But when government mandates a product, then it changes the equation greatly against the population. Manufacture is no longer incentivized to maintain quality. If the quality is not easy to identify then it becomes much more easy.
Now, they are outside capitalism. Now they can bribe the government, and enjoy perpetual sales.
So to answer your question, if it was not mandated, there would be no push against it. Such businesses will run out of business as capitalism run its course.
That's not how it works.
Governments have regulatory powers. They can stipulate prices, control quality, etc and so forth. Companies can be fined for breaching regulation.
Ultimately, the government itself can even establish vaccine production to distribute among the population if necessary.
> if it was not mandated, there would be no push against it.
Do you really think that? You can’t think of any other health choice that has zealots protesting other people’s choices?
You get anti-vax people wanting to avoid the vaccinated, removing masks from those wearing them, claiming not to hear the voice of people wearing masks.