primrose65 You say: "It's very unusual for a party leader/Mayor [Corbyn/Khan] or even a politician to command such little respect from the press and for that mockery to be broadcast."
I disagree. It's not at all unusual for anyone who takes the side of ordinary people against big business to be mocked, with efforts made to discredit them and destabilise the organisations they represent.
At one time I did think, despite some misgivings, that perhaps public/private redevelopment partnerships might be the only way forward, given the scale of the housing problem. But having seen how other privatisations/PFIs have worked out - and, in housing, how local people's views are not sought, or disregarded when they are sought, I have changed my mind.
In my own area, the Labour council plans for our town centre (which, only a few years ago, had a huge amount of money spent on landscaping and the provision of a children's playground) include four residential/commercial blocks - one being 29 storeys high. There is huge local opposition to the town centre's only open space being reduced by one third and replaced with buildings totally incompatible with the surrounding area. I am a Labour supporter but that doesn't mean I support the MPs and councillors who I feel are not representing the people they are supposed to represent.