https://www.theguardian.com/politics/2014/mar/02/how-paedoph...
So if there are indeed some right-wing groups talking about this, maybe it's best not to brush off their claims without some scrutiny first. And I say this as someone who mostly agrees with the left on most things.
Anyway I don't think that any of this has much to do with Apple being asked to implement specific technical measures for detecting child abuse imagery.