Should the boundary review have as a criteria (after equal numbers per seat) a criteria to carve out seats where ethnic minorities make a clear majority of the electorate as in America?
This would have two benefits. The first would be helping to create an ethnic minority leadership class and so helping integration into British culture.
The second would be to concentrate Labour voters into safe seats while distributing Conservative votes more evenly, thus creating more Conservative leaning seats than would be through a colour blind boundary review, and this could be done for the most politically correct reasons.
Dutch style PR or STV would both have a good chance of creating ethnic minority parties once people realize how few votes you need to get elected.
It wouldn't be possible to do this in London to an extent that created much greater concentrations than already (naturally) exist.
And I don't see anywhere else you could do it either to any significant degree. Looking at Birmingham you could obviously change the Hodge Hill and Yardley seats so that one was overwhelmingly inner city and Asian while the other was overwhelmingly white suburbs but the latter would still very clearly favour Labour. If you want to maximise Tory seats in Birmingham you only really have two options. Firstly split Sutton Coldfield and merge it with Erdington to create two Tory seats in the north of the city. Secondly you can shore up Northfield by including Bartley Green in the seat at the expense of Kings Norton. Neither have these have anything to do with concentrating ethnic minority voters even tighter than they already are.
Also if you look to the Black Country you already have Walsall South and Warley concentrating ethnic minority voters in a manner that proved very useful for the Conservatives in 2019.
I simply don't see where right thinks that his scheme is going to create new winnable seats for the Tories.
It might be theoretically possible to do it in Coventry and Warwickshire if you drop all the other criteria the boundary commission are supposed to take into consideration, especially if you had access to household ethnicity data and were able to split postcodes. You'd probably end up with an arrangement containing multiple exclaves and at least one rural corridor containing no voters at all. But I think you'd still have to gerrymander the white majority seats to guarantee this change resulting in a partisan advantage for the Conservatives.