Unfortunately, a lot of these features are being mandated in newer cars. Rear view cameras are the prominent example here.
I'm with you. I drive a 20 year old vehicle, and my next vehicle will probably be a 30 year old rebuilt truck. I'm sure I could find someone to do all the work and source all the parts for a rebuild on something for much cheaper than the cost of a new car.
This bullshit is getting out of hand.