Sorry, I will have to disagree with most of your points. However, I agree in saying that the vaccination does not stop you from contracting/spreading the virus. But it reduces your chances significantly, enough to not put a strain on the healthcare system. A simplified related example at a level that you may understand would be seat belts. They do not stop major injuries/deaths but that most definitely reduces your chances of injuries and death. That being said Covid is real, its impact on the world is real, and vaccinations are one of the best solutions to this crisis.