You are full of shit! Covid will not protect you any better than vaccine. The vaccine protects us from the initial damage from novel covid. Like the flu, nothing will prevent reinfection.
Natural immunity which comes from being infected is very inconsistent. Studies of antibody levels from infected patients vary over a wide range. Also some immunity last only a month or so and others last 6 months or more. Also unlike vaccines, the strength of natural immunity is not known. Anyone considering natural immunity in lieu of a vaccine should get an antibody test and repeated it in order to determine if the antibody levels have fallen.
The problem is there is no way to equate an antibody level to efficiency level of a vaccine. It is basically a crapshoot which is why the CDC says get vaccinated even if you had covid. The fact that so many people get re-infected does not speak well for natural immunity.