Does that matter to the point? did you need to do the part quote on order to ignore it by arguing the specific case?
All I was doing was making the point that the reason why we never saw Ryan Giggs in an England shirt (except at schoolboy level), and therefore not at a major tournament, was basically down to his choice. No idea about George Best (your other example) although that was a rather different era.
But on your broader point, no I don't think there should be a team made up from the best players from countries that didn't qualify. Seems to me there are two approaches to teams - first club football, where (provided you have sufficient resources and perhaps the right scouting) you can put together any team you like regardless of nationality. Secondly international football, where each team is limited to picking only players qualified to play for that team. I really enjoy both, each brings different challenges for management, selection etc, but you can't mix the two. It is one or the other.
Sure you could have some pointless one-off friendly but that's the sort of contrived approach other sports tend to adopt, perhaps because they aren't confident of their 'product', but football doesn't need to do that.