Yeah true, Iwobi does rather fuck up my point there. It would be somewhat disingenuous to not group him in with the british lads, given he's grown up in the very same culture, although the Nigerian influence and not identifying as an englishmen might've helped him.
I guess the point would be, though, that Bellerín, Fábregas, Iwobi, and Gnabry are all clearly not very british--in the bad way--as Ramsey, Wilshere, Gibbs, Ox, and even Chambers are, or Bentley and Pennant before them.
It's always better to offer young, exciting players an "undeserved" bumper deal than not. We're talking about peanuts compared to the market in its other spheres....look at Rashford, they're talking about him becoming the highest paid teenager ever at 50k a week...that's still just a 1/4 of what you end up paying to get a top player on the open market, disregarding transfer fees, and considering getting a top player on the open market is complicated enough as it is, it's always best to hold on to players who can become top players from inside.
It does look difficult for him to get into the Bayern team next season, with Coman, Douglas Costa, Robben, Ribery even still?, and I guess you could say Müller? ahead of him. But young players who have such a strong sense of the right thing to do in the final third, along with the natural abilities he has, are hard to come by. I wouldn't bet against him.