You are contradicting yourself. You say this is about getting things under control, but then you say there is no way of controlling things.

Because vaccinated people can still spread infections vaccinations, just like lockdowns, do not help ‘getting things under control’. They only delay progression of the pandemic.

You say ‘it will probably be a common cold, once humans have enough antibodies’. Humans do not get permanent antibodies from the vaccines. They get antibodies from getting infected. Lockdowns and vaccines only delay the inevitable.

The only argument there is is that vaccinated people get less seriously ill than unvaccinated people. But then it affects only themselves so it’s pretty hard to argue for schemes that force people to get vaccinated against their will.