We have 2 problems as I see it. Our central defence is reliable only when we protect it with holding midfielders or even add a third CB. If we went gung ho and shoehorned even more attacking players in we’d be shooting ourselves in the foot. Southgate recognises this and picks his team accordingly. If Van Dyk was English we’d have a solution. But he isn’t so we don’t. And Southgate is correct that tournaments are almost always won by the most organised team (with quality thrown in)
secondly, and an issue that has always been a problem, is our midfield struggles to keep the ball against better quality teams. Until we start producing and treasuring more technical midfielders this will continue.
So overall, yes, Southgate may have had relatively kind draws in tournaments, but I actually think he’s got the most out of most players. Let’s not forget the mediocre records of every other England manager going back to Venables (who also had home advantage), and be a bit more realistic about the quality of the squad we actually have, rather than what we think we have.