Ofcourse. However the virus could still get into people with strong immune system but won't be able to harm or make them sick. This doesn't mean such people should become reckless and allow loads of viruses to get into them. If their immunity is weakened, the viruses could succeed. So, they have to maintain the strong immunity and remain protected. They should try as much as possible to limit the loads of viruses getting into their body
Don't be so sure. The Bahraini government released some data recently, which showed that around 15% of the individuals who died from COVID in that country were fully vaccinated. I agree that vaccination reduces the chances of hospitalization and death, but it definitely doesn't reduce the risk by 100x or 200x as the media is claiming. I think it is more like a 5x-10x reduction in risk. On top of that, the mRNA vaccines are now being reported with decreasing efficacy after 4-5 months of administration, which necessitates a booster shot.