He doesn't actually. He knows what he does, which is bringing a quite irrelevant point which has nothing to do with the main point. Capello was wrong, but what he did wasn't disrespectful because coaches must be given the freedom to choose their teams. If any of Alex' fans had said Capello was disrespectful to Ale for benching him, the exact same YOU would have mocked them. No, it wasn't disrespectful because he was the coach. Ale could have left the club for that, I know, how is that relevant? He wanted to play more.
Point here is that Alex should be offered new contracts because he is Del Piero. It's not about starting games, it's about showing respect to the club's biggest legend of all time.