Mr Corbyn genuinely lives in a fantasy world, compounded by the extremely narrow life experience he has gained as a 'professional agitator' which is all he has really ever been.
In his world, the downtrodden working class will rise up and throw off the yolk of oppression and take all the money and share it out, and everyone will be happy.
In the real world, even Labour voters are savvy enough to know that his lunatic rhetoric has no place in the modern world, and Labour needs to bite the bullet, lose this election, send him off to his allotment, elect someone sensible, and start again.
Of course, Labour's track record in electing leaders who have even a vestige of the qualities needed to lead and win - a personality, a grasp of realism, decent teeth, a nice voice, and so on, is poor in the extreme, but they need to be looking now, and they probably are.