Unless I am mistaken, he was a complete disaster in the first half of last season, so he got stick, like every other player does!
When he had a turn of form from Christmas onwards, he was lauded and supported, like every other player who plays well gets!
Football fans are fickle, that is a fact. Footballers form is in and out, unless they are world class, of which he isn't.
No idea why you feel the need to make special dispensation for Ross Barkley and feel he is a victim, he gets as much and the same as every player if they underperform.