My grandparents home in Los Angeles County took 35 years to grow 10x in value.
But it eventually happens, and if you limit tax increases to 2% per year, homeowners get a tax cut in real terms most every year.
Anyways, why the need to sell your house?
Are you saying that people should never move? I can think of a few reasons: To change jobs. The kids have moved out, so you don't need a big place (especially useful as it vacates a big place for new families with kids). You're too old to go up and down stairs. You need cash for retirement so you want to downsize from your suburban home and move into a small one story condo. This system breaks the normal lifecycle of home ownership.
Why not target the federal government for supporting the home loan interest deduction, which promotes massive financing that props up pricing?
Absolutely! Provided it was phased out over a number of years, I'd vote for this in a heartbeat.
Why force people out of their homes because of unreasonable property tax hikes?
You can get past the "forcing people out of their homes" problem in a couple of ways. The first would be to allow people with little to no income (seniors, for example), to have the tax assessed against their home and have it taken out of their estate when they die.
The second would be to move to an income tax and forget about property tax entirely. Property tax causes these sorts of problems by its very nature. Property isn't liquid, so you can't use property to pay taxes on property. Rich people have lots of property, so they pay more (in theory). Old people don't have the income to pay property tax, so we give them a break. Basically, we're fiddling with the property tax to try to make it act like an income tax, but with the nasty side effects of all sorts of terrible market distortions. I don't get why we do it.