Generally, you solve this problem by using different (randomized) wavelengths, modulation (e.g. pulsed in a pattern), or if interference is inevitable, do something like WiFi or BLE does. It's not a big problem in practice.

I can only suggest you think harder about the 'all cameras' approach. Imagine say a snowstorm. Hail. Rain. Ice sheets. Sun in your 'eyes'. Cameras, basically, suck. Elon's game is to use suck-tech and make it un-suck with computons. Bad Choice.