I think that would be true, assuming you have no additional reasons for opposing cannibalism.

Personally, I have no moral opposition to the idea of eating babies, but I suspect that baby farming would cause much more distress to the general population than the food it would produce would justify.

I don't agree with Hanson's position in that essay though. To take an excerpt:

We might well agree that wild pigs have lives more worth living, per day at least, just as humans may be happier in the wild instead of fighting traffic to work in a cubical all day. But even these human lives are worth living, and it is my judgment that most farm animal's lives are worth living too. Most farm animals prefer living to dying; they do not want to commit suicide.

How does he claim to know that? It's not as if he can extrapolate from the fact that they don't kill themselves. Factory farmed animals are in no position to commit suicide, regardless of whether they want to or not. And even if a farm animal's life is pure misery, it probably doesn't have the abstract reasoning abilities to realize that ending its own life, thereby ending the suffering, is a possible thing.

He compares the life of a farmed animal to a worker who has to fight traffic to spend their time working in a cubicle, but an office worker has leisure time, probably a family to spend time with, and enough money to make them willing to work at the job in the first place. I think the abused child in Omelas is a better basis for comparison.