Walker is still a decent right back. Defensive frailties no worse than Alexander-Arnold’s. Actually, England have three very good right-backs (including Reece James).
What’s a load of shite is the centre-halves and keepers.
Especially when you look at the trios that have won some past World Cups e.g.
Illgner/Buchwald/Augenthaler/Kohler
Buffon/Nesta (Materazzi)/Cannavaro
Casillas/Pique/Puyol etc…