"The better side won"...
Pffffff. That argument is just silly. And most important, irrelevant. You don't win by being the better side. You win by scoring more goals than your opponent. Period. No buts, no ifs, no excuses, no excceptions.
That is precisely one of the reasons footie is as popular as it is: the better team doesn't always win (in fact they lose more than arguably any other big sport): gives smaller/weaker teams a shot, cinderella stories, etc, etc.
"deserve'.... ffs. Wtf does that even mean. Did Barcelona deserve to lose to Inter in 2010 (just to name one pretty one-sided match)? Who cares? They lost, and the history books will say Inter won, end of.
That's why we keep score, so we don't have to give a **** about who thinks who was better.
England won, take it. Congrats, enjoy.