Which peers have backed him up? So far I've seen two retired English refs, a retired Turkish one, a retired Spanish one and a retired Danish one all saying it was wrong. The closes to "backing him up" I've seen was from another retired Danish ref who said it was "very harsh", which is hardly a stamp of approval.
The fact that he was backed by his bosses doesn't really say much.
So your argument is that there would've been no (or very few) complaints if we had gone on and won the game? I highly doubt it, considering the reactions to Fletcher's red card against Arsenal when we won the tie comfortably
https://www.redcafe.net/f6/fletcher-surely-we-can-appeal-247258/
It's a poor argument at best anyway. Of course the mood on here would've been different if we had won the game and of course people would've been praising the team of winning the game
despite the sending off. As pointed out above though, I'm sure there'd be plenty of people who would've found it more enjoyable if Nani hadn't been sent off and by that wrongly ruled out of the next fixtures.
Of course the red card is not the only reason as teams have managed to get a result with 10 players before, but if you don't think it was the biggest one you're a tool. Madrid hardly had a sniff before the sending off and we created a lot of chances. You also have to understand the mechanics behind a red card. I think Madrid were about to get frustrated because we've kept them relatively quiet for the entire game, but when Nani was sent off they (and their fans) saw a way to win this game. It gave them a morale boost and Mourinho was able to make a very attacking substitution. The red card also freed up Alonso, who Welbeck had kept out of the game until the sending off.
Arguing that the red card didn't change the game entirely and wasn't the main factor in Madrid's win is simply bullshit. Even the Madrid fans I've talked to agree with that.