Sadly, most "business correspondents" have absolutely no knowledge of economics, indeed any sort of science does very badly, especially on the BBC.
Note that we don't get the standard "two views" on this, just horror stories. This is because journos are usually surprisingly badly paid, and so believe this like they believe in gravity. They see people who studied proper subjects at Uni buy homes, and feel that their "right" to buy has been violated.
House prices show very strong correlation with earnings, the term we never ever used in the media is "mean reversion", ie it bounces around a the average. We are currently at the highest it has been as a multiple of average earnings.
Do some very simple maths.
A homeowner typically pays around 40% of their earnings in tax (income, council tax, etc), and we can assume that ain't coming down.
Thus, even if they don't spend any money on food, travel, clothes or fuel, they have 60% of earnings to use on mortgages.
An mortgage rate of around 8% is 1/12 the capital borrowed.
At the least, in the long term you must at least keep up the interest, even if you never reduce the capital borrowed.
Thus the maximum debt you can possibly service is 12*0.6 = (about) 7 times what you earn. Even to get that far, I've had to make stupidly unrealistic assumptions.
Of course savings allow you to get past this a bit, but with million quid mortgages, very few people can hold that up for more tha a couple of weeks without being sucked dry.
If you are someone who has realistic prospects of a sharp increase in earnings, then you might borrow 5 or even 6 times earnings and get away with it. But at ten times there simply won't be people able to pay the mortgage, so they won't but the homes.
What the BBC and other media have simply failed to grsap is that prices are not set monopolistically. If you try and sell your house for more than people can afford, you won't sell it.
If you have 10