I don't think it's wrong to be opposed to Moyes if there's context for it. If we'd appointed someone like say, Martinez, and the results were erratic as a result of him implementing his ideas and style of play, I'd be totally supportive of giving him time. With Moyes, however, there's little to no evidence of any work in progress. There's no discernible style of play nor one being suggested at, he's cowardly, he is making one excuse after another in the press, and most worryingly, he doesn't seem to have the mentality for the job.
The argument always seems to be around here that if we give the manager time, he'll come good. Why will he? Because Ferguson did? Ferguson was a proven winner before he arrived and, honestly, he'd likely have been sacked if it weren't all the behind-the-scenes rebuilding he was integral to at the time. Moyes has no such responsibility. The reality is that the overwhelming majority of managers who are given time shouldn't have been.
I'll also add that I don't like Moyes's treatment of Kagawa, Nani, Zaha and Hernandez. Hernandez, in particular, is a shining example of a footballer and someone who seems to thoroughly love United, yet he's cut a disconsolate figure in the rare times we've seen him this season. I don't like how they're being handled, and frankly, Moyes has done nothing to deserve my loyalty ahead of the players.