We know that children who have sex with adults are harmed.
NAMBLA would say they disagree. They would point to kids who say it is great! (FOR THE RECORD I AM DEFENDING THE LOGIC, not the activity).
Sure. And other than a very, very small percentage of the population, they have not been able to persuade people that they are correct.
They would point to kids who say it is great!
I'm sure they can find some exceptions to the rule, but the evidence against their position is overwhelming.