I'm having to think again about the idea that he is stupid. He won the leadership of Labour, did much better than expected in the 2017 election, is purging Labour of anyone who disagrees with him, and is at 42% in the polls.
Yes he's breaking his manifesto pledges, but he is not breaking what he sees as his primary allegiance, Marxism. Power is to be gained in any way, within or without the ballot box. A manifesto is just a means to an end. It doesn't mean anything.
Corbyn is playing the LibDem trick of standing for whatever people want him to stand for. He holds multiple and conflicting views, and people love this.
Yes he indeed beyond the pale, but people vote for the bullies and the thugs. He has gained votes through his support of terrorists, through his support of Iran, Russia, Venezuela, Cuba, through his leadership of the anti-Semitic party, through being accused of being a spy and of betraying the UK.
Presumably we will see in the next few months Momentum consolidation of their hold. Then there's the local elections, where Labour should do well. Then next winter there's the wave of strikes to topple the government.
You do seem to forget that Corbyn won the first leadership contest because Conservatives joined the labour party just to vote for what they thought was a dead beat idea, a bit like the labour front benchers who laughed at him as a candidate and endorsed him for a laugh. The second contest was overwhelming puffed out by new labour voters working the Momentum ticket - plus voters going against press and media opinion.
Corbyn and his backers are a canny lot and think nothing about what happens to the country as long as they get to rule.
Corbyn is a poser and will go where the most publicity is.
As for his manifesto pledges, note how he berates others who break theirs, many layout voters will see this as a betrayal. You have to loom at the make-up of the labour party, die hards who vote labour because they're working class and "my dad always voted labour" and not because they thought about - or indeed noticed - how this current labour party is made up of the champagne sort of idealist. Then there are the union votes which are a block, but then union membership is required regardless of you party but used as the union sees fit - democratic? And finally the something for nothing brigade, the students who think its their right for free education, houses and full health care, who have not idea of what its like to have to save for anything, the cash card iPhone brigade who are happy to have it now and pay
The don't see his political grandstanding of love him love his terrorists, they take this as the sort of fake news that Trump complains about - alas discerning the truth is beyond the comprehension of so many!
As you say, once Momentum get their teeth really into things and the strikes come - not for the workers though but for the good of the party -it will be to late to head the warnings and look back at history.
Oh yes dandelion will go on about Maggie this and that but forget the 3 day week and the damage caused to the country, he will forget the have it now pay later antics of previous labour governments, the Blair years when his only concern was his legacy - a murderer - and browns ignoring all the signs of a meltdown and failing to act quick enough and they will be a line by line rebuttal espousing the party mantra.
Corbyn and his gang are dangerous. They want us to remain shackled to the EU in as many ways as possible.
Corbyn and his gang are more than dangerous - they are trying to say the population that they are worthless and will never make it alone unless they have help from the EU.
Corbyn is a self serving non entity pushed into power accidentally - and guess who'll pay the cost because when the bill comes to be paid he'll be getting a pension he doesn't deserve.