I can remember what Right to Buy was introduced in 1980 under Mrs Thatcher's government. I tend to think there was something ideologically unsound about the idea at that time, perhaps it was part of a wider plan to move communities towards individualisation, and to create discord in strong 'working class' areas by engineering a division between the property owning 'middle class' and those who rented from the council. In short, RTB, seemed to be something that was part of a much broader government policy at that time.
Now, and I realise I am being cynical, Mr Johnson is hungry for votes, and it may seem to him that this little gem, that made Mrs Thatcher very popular among some members of a potentially problematic community, may well improve his popularity. In short, there is very little thought behind this proposal, very little design to the plan, it is simply a people pleaser.
Yet, it is a people pleaser that is potentially very dangerous. For example, I live in social housing. My landlord is a large housing association. The housing association does a lot more than provide houses: it provides community support schemes for more vulnerable residents, it facilitates free courses that can increase well being and employability for tenants who wish to participate, it provides active consultation with tenants on environmental issues, legislation, company procedures and so on, and repairs and maintenance are carried out free of cost and to a good standard by the association's own workforce. There is financial advice available for tenants who are struggling and payment of arrears, should these occur inadvertently, can be negotiated sympathetically.
In short, good social housing provides a true social function, and once the stock has gone, then those additional services will also go.
Furthermore, there are people who may never be able to 'own' their own home. My eldest son has autism and serious mental illness. When he moves into more independent accommodation (he is in semi residential accommodation), it will most likely be to a social landlord who works closely with the local authority that provides a large component of my son's support. There is already a significant shortage of social housing stock, and this revamped and diluted RTB will do nothing to improve the situation.