As far as NHTSA is concerned, backup cameras are just as mandatory as working brakes. You can't build a vehicle that doesn't have them, and most (all?) states prohibit operating vehicles without these features. Tesla, Mercedes, Nissan, Toyota, Honda, and Subaru have all had safety recalls because of issues with software failing to display that image properly.
Older vehicles don't comply with these newer regulations and are only allowed to operate because of grandfather clauses.
Please provide the C.F.R. link or state statute link you're talking about.
You have been given plenty of opportunities to make your case and have refused to do so. I think it's pretty clear by now that you're just being disingenuous.
California: https://casetext.com/statute/california-codes/california-veh...
Illinois: Chapter 12 at https://www.ilga.gov/legislation/ilcs/ilcs3.asp?ActID=1815&C...
Michigan: https://www.legislature.mi.gov/documents/mcl/pdf/mcl-300-194...
Your turn.
The idea that computers need software updates is just insane, and clearly fallacious. Cars worked fine without regular software updates for decades.