Are you a paedophile? No? Then that’s why you find it easy.
Not defending this guy or anyone who harms kids, but to try and compare how easy it is for you not to do, to how easy it should be for those who have urges you and I can’t even imagine not to do, isn’t really productive - it completely ignores the core of the issue - for some people it isn’t that easy, and they need serious help, before they cause harm, not for their struggles to be brushed off as something that isn’t real because the rest of us don’t experience it.
And just to reiterate, this isn’t a defence, and those who do harm others should absolutely suffer the consequences, but you’re never going to stop that kind of harm from happening again and again if you pretend the problem that causes it doesn’t exist.