Effective at protecting those 60 or over from the first few mutations of covid for a few months before quickly declining in effectiveness yes, though the long term effects are unknown and spiking antibodies nonstop to protect from viruses we will eventually have to adapt to may f**k us over with unknown consequences. But hey to your small sighted brain it is a miracle I am sure.
Admit that it should be the individuals choice and businesses shouldn't have to be enforcers of the nonsense laws. Also admit that if the vaccine is so great there would be no reason for the vaccinated to force the unvaccinated to vaccinate.