Of housing and public infrastructure in the UK? Politics: Green belt and similar planning restrictions, austerity, Thatcherism, privatisation, restricting local councils' ability to own and supply council housing.
> You can assert this but I don't believe it for a second. It is pretty much accepted by anyone that is doing any stats on this that demand is increased by immigration.
And supply. Not at the expense of supply.
The figures here show that in 2011 (when it was measured as "country of birth" rather than "nationality") were 9:1 ratio of locals to migrants in construction. The overall ratio for the entire population in that year was 8.4 to one.
https://www.ons.gov.uk/peoplepopulationandcommunity/populati...
Both have changed since then, of course; between the statistical value being measured (nationality vs country of birth, Brexit, Covid, austerity), this is just to give a flavour for a specific date when the numbers were easier to compare.
> Not sure what this has to do with anything.
You don't understand that keeping people from leaving was because of the economic catastrophe that the people in charge knew would have happened if they didn't keep people from leaving?