> Real-estate taxes should be scaled with both income and wealth progressive tests to prevent both obscene burdens and tax dodging, so that they are affordable, encourage people both to attract residents to the state and pay their fair shares
Ultimately, this will not sufficiently increase housing stock enough to solve the problem. The problem here isn't that the State of California isn't making enough money in income taxes, but that there's an artificial ceiling on the tax base, because people can't afford to move in (to new developments) and start paying property taxes themselves.
Ultimately, allowing people to stay will only exacerbate the problem. NIMBY is a political phenomenon advanced by an artificially small voting base which is acting in its own interests. If their taxes normalize, and they start to move out, then so does their political influence also start to wane. This will gradually allow for new development to start up and for new people to move in, which will both bring additional tax revenue and proportionally reduce political support for NIMBY. Over time, this becomes a self-reinforcing positive cycle for development.
And no, I don't have any sympathy for Grandma and Grandpa having to move. First of all, because they're going to get a massive payday for doing so, since their real estate is worth so much. And second of all, because the laws of economics are blind. Are Grandma and Grandpa really more deserving of affordable housing than anybody else? Prop 13 is the government picking winners and losers, and calling Grandma and Grandpa "losers" because they were forced to sell for millions is, quite frankly, offensive to anybody who is losing under Prop 13.