This generation of unemployed is forgotten, but not accidentally so. Much of the media enthusiastically backs the biggest cuts since the 1920s. They … - Owen Jones

There is a long tradition of left figures who are charismatic and deliver rousing speeches but who – like George Galloway – are easily portrayed as demagogic. They can rouse the affections of the already convinced, but few others. When they are the object of personal attacks, they attract little sympathy, and tend to respond in kind.
Corbyn, on the other hand, has a good shot at the title of most self-effacing and humble politician in parliament, and certainly for being the lowest expenses claimer among his colleagues. That helps shield him from the personal attacks that are normally dished out to figureheads of the left.

His great departure from Thatcherism was a desperately needed boost to spending on public services. Nothing remains of this as a principle in British politics. It is left to arch-critics of [Tony] Blair like myself to defend a big chunk of his government's economic record from his own supporters.

He [Corbyn] enjoys the support of a mass grass-roots movement of the kind that almost no politician ever has but no professionalised apparatus – and he will now meet one of the most aggressive media on earth.