That disparity is driven by the inflation of Capital (wealth) relative to wages. Those who own Capital can buy more capital (houses), those who don't can't. There's a reason we've seen a massive increase in tax receipts from capital intensive industries (Corporation tax) relative to income taxes, despite having very high marginal income taxes. The State then uses those tax receipts to bridge the gap between earned income and capital values, or rents on capital. Those who rely on wages only are disadvantaged. That leads to a bigger State that needs to intervene more and more to provide people with what they used to be able to provide for themselves. That leads to a kind of poverty trap.
It's not just houses that have inflated, it's all capital items. Look at the stock market gains over the last 2 decades. You now have to earn way more to buy a house, but the same can be said for most Stocks. That's the reason for the issue you are highlighting. The only solution is to close the gap between wages and Capital values.