He was never really in charge. And, given his 40 years in Parliament, surprisingly naive regarding the realities of power. Psychologically incapable of the ruthlessness needed in a leader.
Put in position - by people like me - in a role he was unsuited for. His naive willingness to compromise with - rather appease - bad faith actors exposed his weakness.
I am sure he is happier now at the morally pure margins.
The 'left' - whether the SCG here or the Squad in the US - are utterly gutless.
Our whole political system is rotten to the core and totally inadequate for the times.
If nothing else, the Corbyn years expose this sad fact - for those with eyes to see.