Pretty harsh standard, especially as "can not take care of" is left undefined and presumed pretty high in this rather affluent culture. There's a vast difference between "incapable of caring for children" vs "earns above the US poverty line, which itself is above some 87% of everyone on the planet" (or even "above my own arbitrary standard which is well into the 90th percentile of world population").
Sure, if you can't care for kids don't make 'em. But if you're going to demonize what sounds like a broad swath of the population, you'd best define the crux of your proposition, to wit "care for".
By take care of, I mean "feed, clothe, educate to higschool level, pay for standard/basic medical care, and provide a relatively safe environment to grow up in". Is that really all that bad of a "requirement"?
If the parents need to ask for assistance from the state for basic things such as the items above, then I'd argue that they're not able to take care of children. Most of the items are given to them by the state anyways, and they still don't "manage".
Obviously that's a rhetorical question. You don't actually want to know, you're just fishing. Because no answer will be sufficient for you, you'll just claim "that doesn't encompass" all poor people.
So, let's skip all that, and you tell me what your actual point/argument is?
Sure, if you can't care for kids don't make 'em. But if you're going to demonize what sounds like a broad swath of the population, you'd best define the crux of your proposition, to wit "care for".