He was a champion twice and in his third championship run he was shown up by Hamilton so much he started making excuses for his sucking and tried to blame the team for giving Lewis an unfair advantage. You can say what you want about Mclaren favouring Lewis, but they didn't pay all that money to Alonso in an effort to make Hamilton look good, they wanted him to win and give Hamilton some experence under a World Champion, which he did until Hamilton started going much quicker, obviously we all know the result with the big baby running off with his tail between his legs.
Alonso is not as good as you think.