Property tax revenue in California is $83.1 billion

It has 40 million residents (who cares if they're citizens or owners or not) - for $2075 per person.

Take another state (I won't even use New Jersey as the highest) - revenue in Texas: $73.5 billion. Population in 2021: 30 million - 2450. Slightly higher, but not much. Texas has no income tax.

Let's take Illinois: $33.8 billion - population in 2020: 13 million - 2600.

I don't think California's woes can be adequately explained by Prop 13.

However, you could fix most of the problem by making commercial property no longer subject to Prop 13.