All right English cricket fans who think this whole thing is messing with English cricket as it stands now. Your point is firm and good.
But just for fun, try and see it this way. A young South African guy with huge ambitions and wonderful talent is attracted to England and is courted as well. He is a sort of mercenary for his pride. He does hugely well and is placed in the country's ATG pile ahead of legends like Denis Compton, Peter May, Herbert Sutcliffe, David Gower, not to mention others. He is then made captain, and his cozy relationship with everyone goes kaput. He is then divested of the captaincy, and plays under an administration which clearly sees him as a nuisance (and definitely too un-English) and would dearly love to throw him out but for his talent. The team then becomes a champion team with good players in good form including the man himself. Then comes along a series where they are severely thrashed, and the administration comes with their claws out on the guy, who was outspoken about his views (inside the dressing room only).
It's a tale of ambition, greed, and folly from all participants. KP was, in some ways, used and thrown aside. He has a right to say all this. Give the man a break. He came to an alien culture and achieved a lot. He was brilliant. And he should not have been dumped that way. He clearly loves batting, in spite of the horror of him not having played for Surrey this year. Of course that proves he is just a whiny bitch, and not that he may have been in a terrible mental state. Just give the man a break.
EDIT: He is clearly a very sensitive person. If we are always so kind to regular people being sensitive, why can't we afford the same empathy and space to Kevin Pietersen? I am not saying he is right. Just that we always act like we have such big hearts when it comes to being understanding of people. Let's be understanding of him. He is basically finished as an international cricketer. Let's just give him space to grieve and feel a bit sad for him. It shouldn't be that he has forfeited our quota of niceness just by calling out the English administration and its faults (from his perspective)