It's total bollocks. I'm glad he's come out with this because I was beginning to resent having to stick up for him. Now he's written something that deserves some proper criticism.
What does he imagine such a "broad network" of lefties, nominally in the Labour sphere of influence, can do to push Labour to the left? If the Labour leadership feels like all the radical left is within their orbit, and that through this can neutralise it as a rival, then it's just going to make them feel even more secure in being able to continue with austerity after 2015. If you really wanted to put pressure on the Labour party's leadership, ie the Leader the PLP, to move to the left you'd be better off working outside, and against, them. Specifically targetting the worst right-wing Blairite MP's and councillors would be a good start
But then that leads to a more important question, is why should people have to constantly frame everything they do in relation to the Labour Party? Should people even be so limited in their thinking to just moving Labour to the left, rather than a more comprehensive project of re-building the radical left from the ground up. British left wing politics is utterly dominated by Labour, whether inside or outside it's always in relation to it. That's substantially a result of how our poiltical system functions, it's a systematic feature of first past the post and the unwritten constitution etc. That in itself is an obstacle to any meaningful socialist and democratic society, and Labour is fully integrated into that. It's not going to challenge the very setup which gives it a virtual monopoly on the British left.
and Owen Jones, although I don't think he's cynical (I notice he's getting some flak from the Labour right for supposedly recruiting from the SWP) I do think it's "all roads lead to the Labour party" and that is quite damaging. Even if every SWP member, or everyone who's been on the Trot merry-go-round for the last 30 years, all of a sudden decided "Right, we're all going back in, wahey!" then joined up, it wouldn't amount to fuck all. Labourism survived through periods where the working-class and socialist left was unimaginably more potent, and numerous, than it is today, so what makes these people think they've got a chance in hell? There's probably more chance that the SWP will lead a revolution and the CC will become our government than the Labour party suddenly embracing Soft Bennism.