This might be something to not worry about very much:
About 300,000 paedophiles are sharing sexual images or abusing children on the dark web, nearly four times previous estimates, Britain’s National Crime Agency has revealed.
What we’re worried about is people abusing children. Actual live humans being harmed.
The worry about online pornography is that it leads to – either in its production or by stimulating the desire for action – live human beings being harmed.
That is, the online bit is measuring a proxy and not direct harm. What we want to know about is direct harm, not the proxy.
And the general finding is that more of the proxy leads to less of the harm. They’re substitutes, not complements.
The real difficulty here being to get anyone to accept the evidence……