Are you an infectious disease physician with a masters in public health, or PhD in Biology with a focus on Virology? If not you’re going to need to to provide some proof to that statement. I will continue to trust the CDC, so far the only “experts” calling for masks are physicians who make a living being talking heads on TV. The scientific consensus remains the vaccines work.
To use an analogy, imagine the pandemic is a flood. Wearing a surgical mask is akin to having a bucket. If your house is flooding there is a chance that if you went into the basement and started dumping the water into your backyard you could prevent the water from getting to the main floor of your house, but your going to get wet, and you most certainly are not going to prevent your basement from flooding. The vaccine is a sump pump, it has a great chance of preventing any flooding, but it’s not 100%. Assuming it continues to function (all studies thus far have shown it does) asking a vaccinated person to mask is like insisting a person with a sump pump go down to their basement with a bucket and watch to see if any water comes in. It’s probably useless, annoying, and unlikely to prevent your house from flooding if the pump fails.