If you assume that we're living in a simulation, you'd first have to ask a few basic questions: Who has created it and is it a benign or a malicious one? What we're 'experiencing' all around us right now: ever more carnage and an attempt to mass enslave us with AI which would lead to the next stage of the simulation - total control over us and our life force, much like the battery analogy in 'The Matrix'. So the motive for the simulation we're in must be to suck the maximum energy generated by mass trauma out of us and to make it ever more difficult for us to figure it all out and to escape the simulation. The very fact that we're living in a simulation means that we were tricked into believing that the simulated reality which we are decoding with our bodies is the real thing. If you 'buy' the simulation, you're not aware that you've been fooled and get ever more ensnared, blinded and enslaved. And the ultimate betrayal is the reincarnation trap which turns you into a simulation junkie who repeats it over and over again.
In answer to your question, you could say that the children being raped and killed are the most 'juicy' source of 'lush' because they haven't a clue that they are in a simulation and their terror must therefore be the most intense, also because they're being tortured by adults who are supposed to love them and take care of them. If it happened to you or me who have gathered some insight into what's really going on, it could still hurt being tortured and raped, depending on whether or not we fully saw through the deceit and the entrapment, but in terms of ''lush' production we'd definitely be less sought after. That's why they're going after the children with such fury and the more traumatised, crippled, drug addicted and sick they are, the more easily they are enslaved.
The biggest question is how to get the F out of here and to bring all our friends and their friends.