Building immunity via vaccines rather than naturally deprives the living virus a potential host to evolve in. It also means you don't have to contract the virus in order to build immunity, meaning the first time you get the virus, a vaccinated person's body would be more prepared, which means more people could more contract the disease at once, without collapsing the health system - allowing it to be safer at the community level to free up movement. I just think you misunderstood the reasoning, you weren't being "lied to".
No, they were telling/forcing people who already got covid that they needed the vaccine as well. I know this because it happened to my children in California. Then they justified it by lying to us that vaccine acquired immunity was better than natural immunity through infection. This didn’t sound scientific at all but they let it continue because they wanted everyone to get vaccinated for some reason.
