There is definitely something in that. Do you think the Labour MP's have been willing to shift their position enough either though? Should it be a two way process?
The information I get from people close to it is that he is not someone who expects people to bend to his will. The frustration comes from the fact he won't have a polemic with people. He wouldn't allow anything to become a disagreement that would be debated. He'd allow everyone their view but always be looking for consensus. To put it bluntly I don't think Labour can have a consensus, the MP's and the ordinary experiences of members are too far apart.
The issue of Trident reflects the issue above. A large section of his membership wanted one thing and his MP's wanted another. I am not sure it made him unelectable though, the biggest and most successful party in the UK today the SNP have won elections in opposition to Trident. What I would say tactically though he did pick fights that he didn't need to have and probably could have parked Trident a bit better in his early days.
As for the Referenda I simply don't think that's the case. Even Eagle who is looking likely to be his opponent congratulated him on his outstanding work just 2 weeks ago. Either she was lying then or she is lying now? I think Corbyn did as he generally always does, which is he didn't make a clear decision on the issue and tried to please everyone. He is an opponent of the EU but recognises his party is generally supportive of it so took a consensus decision on it. I do think this is a weakness overall but not sure it's that much so in the Referendum. The blunt reality is lots of Labour's heartlands wanted to vote out, would a more dogmatic EU enthusiast have won those people round or just widened the divide between them and Labour?
You are pulling apart his performance which I think is fair enough. This is different to saying he hasn't tried to include people though. I don't think many leaders would have tried as hard to include people as Corbyn. His big mistake for me is probably trying to hard to fit in instead of saying what he thinks and going for it.
Few things (hate doing lists but easiest way):
1 - Definitely should be a two way thing. However, if the leader is stonewalling progress, that two way system falls on its' arse immediately.
2 - Agree he was looking for consensus, and never getting it. That's one of my problems with him - he never leads. He should be able to take views and rationally come to a decision based on them and
lead. His party represents their constituents, so when he's in the job, the party should be the priority, not the membership. With Trident and a myriad of other things, he failed in that task.
3 - Trident makes him unelectable as it's an easy thing to hit him with for the opposition, and a red line for many people in the country. It'd be tossing the Tories a light ball to bat out the park. That's one of the reasons any Tory will demolish him in an election, and most core Labour voters over the last 25 years are unable to vote for Corbyn. I'd have to abstain from the GE, for example.
4 - The SNP are a protest party in the system we have - indeed, a one issue protest party in terms of independence. If they ran for Westminster and had Trident as an issue, that support would slip (and indeed they'd get hardly any votes in England whatsoever). So not really a comparison.
5 - I disagree with your last paragraph. He hasn't tried to represent his party; instead he's represented himself, his best mates and the membership. If that was enough to win an election, then fine, as that's his remit. It isn't though.
6 - Eagle is a liar, yes.