Personally I think the Paedophile Information Exchange were just fucking immature arseholes. I'll say one thing for them though- they don't hide behind a euphemism about what they are. Usually promoters of repulsive ideas go to a bit of trouble to muddy the waters a bit- think of the benign sounding Institute of Historical Review that is actually a front for neo-nazis for example.
Given the PIE's directness about who they were, the links between it and a number of Labour politicians- Harriet Harman, Patricia Hewitt and Jack Dromey- really do require a very good explanation or an immediate deselection.
I don't think their behaviour is an aberration but rather a part of an extreme and marginal anti-family agenda that exists on the fringes of the extreme left. At the same time as linking up with the PIE, Hewitt & Harman coauthored a pamphlet titled "The Family Way" which claimed among other things that:
'It cannot be assumed that men are bound to be an asset to family life, or that the presence of fathers in families is necessarily a means to social harmony and cohesion.'
So traditional two parent families- bad.