Son of a Marxist, therefore must be one himself... illegal immigrant, so he's bound to favour them, isn't he? And of course, he's one of them. No charisma... a bit weird... probably autistic or something, shall we say Asperger's Syndrome...? (Why not? This worked well with Gordon Brown. Before you know it we'll have everyone commenting on news articles involving Ed Miliband to call him a 'weirdo' and say he's 'mental'. Job done.) Call him a bit weird and then everyone will know what you're really getting at. Say he looks uncomfortable in public, as if he might be special needs.
Not on the birth certificate... of course, it's a purely private matter between him and his 'partner'... (ensure 'partner' is in inverted commas to make it clear that it's wrong / immoral / maybe he's gay or something) ... but surely his children have been let down, traumatised... of course we wouldn't want to imply that he's not the father of his children... but get him to deny that he's not the father, just to point it out... too busy to look after his own family, what does that say about him? Weirdo. Nutter. Loony. Special needs weirdo maybe gay illegal immigrant Marxist leftie Trot troublemaker scum bastard, or just a really bad dad? Hey, it's not for us to decide... it's a purely private matter for him and his 'partner'... of course, he couldn't be bothered to get married... they hate marriage, while at the same time they let gay people, and lesbians do it... oh yes, it's pretty clear where these metropolitan elite liberal-left Socialist scum's priorities lie... not with marriage and families and children and nice things like that... but with dirty evil, like gays and lesbians. What does that say about Labour?
Lurch to the left... left-leaning... propped up by unions... evil unions... three per cent of union members at a time when they're less powerful than at any time over the past 100 years vote for Miliband, so he's a puppet... puppet of Bob Crow... Bob Crow's evil autistic puppet... weirdo non-father Crow puppet Asperger's Marxist... Labour won't win back their Surrey heartland with him in charge... Miliband will lurch to the left and leave Middle England behind... he will, whether he's said the exact opposite or not... fears of a lurch to the left... fears of rifts in Labour... fear... fear... fear... more talented brother, yet he got elected... and he still won't put his name on the birth certificate...