> Voters, in aggregate, want rents to fall and prices to rise, roughly divided by renters vs owners

I assure you, a lot of people in the UK want house prices to fall too. There are too many renters who don't want to be renting, and the proportion is increasing. They wish they could buy instead, but can't either because of price, inability to save enough for a down-payment as fast as prices rise (while large rent rises impede their saving or even drain it, and incomes rise more slowly than prices), or inability to obtain a mortgage despite a history of consistently paying more than a mortgage in rent. For the latter category, who can afford a mortgage but can't get one, and are already paying more in rent, their main problem isn't income or price, it's the tighter restrictions on mortgage availability since the 2008 financial crises. But they would still like lower prices.