TTWK scenario wouldn't happen (though I agree that rents need to come down)
There is no easy answer to what to do
We need people on median wages (council workers/teachers/public sector workers who earn less than 30k a year to be able to live in London). Minimum wage jobs are often picked up by students who already have accommodation.
But we can't price out public sector workers like tube drivers and nurses - these people aren't the ones I suspect people mean 'on benefits'.
It's fine (ish - you still have to at least give some thought to families who've lived there their whole lives) to say no 'non working' people should really be living in London.
But saying 'no one that can't afford to live there without housing benefit/tax credits should live there' is just idiotic.
That's half the people in normal jobs - theyre not bankers! (Apols to any bankers on this thread)
Let's not go down the politics of envy - oh I can't afford to live in London so no one should.
Those nurses in a tiny flat, they're not in your 4 bed detached up North
but they're still doing an essential job and need somewhere to live