If it's meant to be satire, I suppose he thinks he is satirising middle-class angst about children's weight.
But it doesn't work, because if it's a satirical persona, it's awfully like the GC we know and loathe already - why, for example, add in the bits about Adele and Diane Abbott? If this was meant to be biting satire about middle-class parents, that section is utterly out of place.
And if he's also, into the bargain, satirizing fathers who aren't supportive of their wives and their wives careers, then why the little vignette about 'feeding him a fucking carrot, that's more like a little anecdote than a part of the satire?
And why conclude with the reflection on his own prejudices regarding fat people?
Satire needs to be consistent, and the persona doing it clearly established. See Jam, Brass Eye, all of Stewart Lee.... If he's trying to do it, he's miserably underqualified, and unfortunately it just reads as though he's an irritating little twat who likes to say appalling and controversial things every week, to a deadline, for money.
Wanker.