We’re speaking in hypotheticals already, and you want to get into even more details? The world would be different in this odd scenario so trying to figure out the details ahead of time seems like you just want to make it fail before we even start.
So I guess my answer would be, the same place as before this problem occurred of having too many landlords. Go back to the 50s and see what they did then. In the 50s a down payment wasn’t even a problem because housing pricing was affordable to everyone.
We still have plenty of houses in the country. Enough to house every homeless person 4x over, so it’s not a real problem except the owners of those houses that want more and more profit out of thin air make it a problem
That’s the kind of answer people like to give when they just don’t want to do anything to fix it. Who cares if it’s a complex problem, we have really smart people in the world. We can bang this out.
There’s no reason to haggle over details though because we’re not the people in that room haggling over details. All we need to do is continue to point out that there is a problem and that we want our representatives and scientists who do studies on housing to fix it.
Leaving the EU had no upsides, and the only talking points leavers had were lies, not complexity. Making it difficult for landlords to continue owning more and more of the world’s property has plenty of upsides and very few downsides.