It was never going to. People have been asking for decades, "Why don't we have a vaccine for the common cold?" And the answer is because it's a type of virus that evolves too quickly. So we just can't. Not really. It's just not remotely as effective as say a smallpox vaccine. And SARS COV-2 is the same type of virus. A coronavirus.
It's just an opportunist money grab by big pharma, and an authoritarian power grab by those in power "for your own good".
It was always going to kill a large number (but small percentage) of people. The "vaccine" didn't stop that one bit. But you can't prove this because we can't go back in time and run to separate Earths, one with the "vaccine"s and one without. So they'll pretend it helped without it being possible to know if it did or not.