The £80,000 starting point sounds kind of arbitrary - who lives in a home worth less than £80k these days? Barely anybody.
Unlike council tax base values, which were at least pegged a long time ago, this is then just set up to cash in on constant inflation. Yes, your actual CT goes up each year, but it's (supposedly) predicated on what councils need for public spending, rather than just what they reckon they could rinse you for.
House prices go up as always, so people have to borrow more to be able to buy them, then they're told that they're rich because they have a (heavily-mortgaged, very low equity) expensive house.
As PP said, I agree that people who live in London and other expensive regions are being done over by this, very unfairly - and I say this as somebody in a 'normal' Midlands town where prices are nowhere near as ludicrous.
It's fair enough to say that it's a privileged choice to live in a particularly desirable and expensive district or neighbourhood; but surely we can't dismiss entire regions of the country in this way?
And we all know how government policies 'progress', don't we? Even when taxes and levies are based on percentages - and so should increase organically anyway - those percentages tend to creep upwards as time goes on. And then, when people complain, we're angrily gaslighted with "Well, why do you think you shouldn't pay your fair share?"
Just like young students are told now, by politicians who got completely state-funded university costs; and this will be the same bluster tactic used when they scrap state pensions for new generations before long.