Also, because of Prop 13 those people wouldn't be paying property tax in 10 years, much like how everyone living there now isn't paying any, so Google is paying for everyone's schools and sewer systems as is.
I'm not sure what you mean. Prop 13 just caps the annual increase at 2%. I've lived in California and owned property here for 30 years. I pay property taxes.
Similar to how if you rent the same place for long enough and it's rent controlled your rent effectively gets cheaper even though it's going up.
There was an attempt to fix this for businesses just last year, but it failed because homeowners were convinced it was a plot to get them.
Asymptotically at infinity, you're not wrong.
I'm probably not living that long though. Meanwhile taxes do go up every year in real money.