I wonder who are these people willing to work in London and transfer 60% of their net income directly to landlord. Maybe money doesn't matter because most of the time they spend in work and commuting?
The math works out for almost every HCOL area. Your salary is higher. Rent is high too but people either choose to live further away or accept a smaller apartment/condo.
London has a big commuting radius with strong regional transit (as maligned as it is).
Isn’t it the same deal in every major tech hub?