Whoever said those properties built after prop 13 was enacted aren’t affected is full of it. Prop 13 limited tax growth, not the cost to maintain infrastructure. Furthermore commercial properties also were included. So grandma can keep her strip mall too!
Spending is part of the problem, but really its just part. Inflation is the real killer here. Prop 13 was just a symptomatic fix. It doesn’t stop the increases in cost to fix potholes or pay teachers, just the ability to collect taxes to pay for them.