[chimprich]

Labour don't oppose it because it makes no sense for them to do so.

If they did oppose it, then the still-powerful right-wing press would be immediately printing LABOUR SUPPORT PAEDOPHILES on their front pages.

Most people wouldn't care, but because of FPTP, elections are determined by a small number of swing voters. Anyone slightly left of the Tories is almost certainly going to vote Labour anyway, because they don't really have any political choice.

It's just posturing for the media, I think. I suspect most people involved realise that what the bill is trying to do is unworkable.