I'm always saddened to read stuff like this. I am sure that that's what he's experienced, but I've also always thought that the best way to deal with it is for young players to see that there is a pathway for them to get to the top.
From the current squad:
1. Genge, Mako, Rodd
2. George, Cowan-Dickie, Walker
3. Stuart, Heyes, Schickerling
4. Itoje, Chessum
5. Hill, Ewels,
6. Lawes, Isiekwe, Willis
7. Curry, Underhill, Ludlam
8. Billy
9: Randall, Care, JVP
10. Smith, Furbank
11. May
12. Farrell, Porter
13. Marchant, Dingwall, Joseph
14. Cokanasiga, Nowell
15. Steward, Freeman, Arundell
I reckon that 11 of the 36 are non-white players. This sort of 'quiet inclusion' and selection of the best (coach's whims excepted...) players to represent the nation is likely to be far more effective in the long term than 'initiatives'.