In a national demographic sure, in the areas where these things were being tested locally, look at Oakland or Richmond and compare those property gains over the last housing cycle. They are at an all time high, but what was the percentage of gain compared to other areas that didn't suffer from those rental boards where if you do a remodel you have to first offer it back to the previous tenant at the same rent (with no allowance for CPI increases or improvements)?
Tax Caps guarantee the collector must charge the maximum increase allowed every year regardless.
People are being priced out of their homes because they are being taxed on the property value, not their equity.
Your math is way off. I know people who live there who pay almost 20,000 in property taxes on their properties, and these certainly are not million dollar homes.