Why is there so much hate against children here?

It was the same on Reddit, people openly say disturbing things against children. What prompted me to post this is someone saying that babies should be put in overhead bins inside airplanes. Even if they're joking, this is a disgusting thing to say. I won't say that about anything else.

Would they say this openly about dogs or cats? I doubt it. If they do, people will be ready with pitchforks.

But no one gives a fuck when it's said about children? Why is that? I though that the general consensus were that children are cute. Maybe annoying sometimes, but still cute. But with the amount of hate I see about them here, I'm really concerned. Does anyone have any thoughts about it?