Sensing System Camera problems of the 2016 Mazda MAZDA3

My 2016 Mazda 3 has had a faulty rearview camera, computerized controls, and monitor display screen for over 2 years now. I am not sure if there is a problem with the electrical system because I have lost the ability to turn on the navigation function, the stereo function, and to see the vehicle maintenance information with non-functioning electrical controls and display screen. Sometimes the monitor display would show a blank screen or a fuzzy screen which is a safety hazard especially when I'm driving my vehicle in reverse and could potentially cause an accident. There has been a recall on the rearview camera since July 2023. I have contacted the Mazda dealership multiple times, and they have repeatedly said that the rearview camera parts are still not available. This is unacceptable because it seriously compromises my safety and the safety of others if I cannot safely back up my vehicle when driving due to the faulty rearview camera, computerized controls and monitor display screen. There should also be a recall on the computerized controls and monitor display screen.