Ban paedophile associations

Martijn, a Dutch paedophile association founded in 1982, which promotes itself as "a platform for debate" about paedophilia and, in its own words, "strives for social acceptance of child-parent relations." It receives media attention every now and then for the associations demands to legalize paedophilia.

How are such associations legal? I call on you to petition against this, I call on you to ban paedophilia.