CA residents: Own property or be screwed

It's a number of general taxes (sales, income, etc.) that are identified in the post as offsetting the missing income from being able to jack up property taxes. These are all taxes you're paying whether you own property or not.

If it were something like unregulated rental taxes of some sort vs this limited property tax, then the title would be more accurate.

As it is, by owning property you're still paying more taxes than you would if you didn't. Yes, it's a capped tax which keeps it from going up astronomically, but you're still paying that additional tax, not saving money.