Yeah - I think we need to be very clear here - this is NOT about children's literature featuring diverse families - which most people approve of.
Queering the classroom is something far darker. Check out Peter Tatchell's plans for just what this means - teaching children masturbation. Not about masturbation - but how to masturbate. I mean really? Adults teaching children to masturbate? I thought there was a word for that - child sexual abuse. Consider this, together with Tatchell's views of the legal age of consent.
And check out the good doctor Christian's recommendation that children be shown porn in PSHE lessons. Something he claims to 'stand by' - despite considerable criticism - because, again, adults showing children porn is considered child sexual abuse. Then check out Dr Christian's rather sympathetic view of child brides too.
And check out Dr Em's research on the links between paedophilia and queer theory. It's pretty disturbing.
I hope Michael Rosen does start some deeper thinking about this - and doesn't just go down the close-minded "la la la you're just a load of bigots" route.
On a side note, my DD won a poetry reading competition with his "Oh Dear" poem - so we've always been fans of his.