How is dumping your savings into a single asset "wise investment"? The idea that housing should be a good investment is ludicrous on its face when you consider its potential volatility, constant upkeep, and lack of liquidity. I'm not sure why it continues to be promoted, and I think people should be disabused of it. Not only so they make better investment decisions, but so that housing speculation is less of driving force in real estate costs.
What you're suggesting is that we allow putting barriers to new development to artificially keep this asset class valuable for its owners. Why does this make sense for housing but not for stocks or mutual funds?