You can be working a full-time job or two to pay rent and gas, but have very little left over to feed the kids every night.
Hmm..perhaps they, they shouldn't be having kids they can't afford?
Also - abortions are expensive and increasingly hard to find. Condoms also cost money. And, no, "don't have sex" is not reasonable advice for anyone to give with any expectation that anyone anywhere will take it.
If you're unwilling to dedicate twenty years of your life constantly watching the job market, your employer's economic outlook, and your own health, then yes, you should NOT have children. You are, quite frankly, too lazy to be raising children.
There are folks that manage to do this quite successfully. I'm sorry you lost the genetic lottery, but you're not entitled to a damned thing.
See this guy - this is the guy that's surprised when the crowds bring back the guillotines. "Wait - you're not entitled to my head." "Entitled" is an interesting word in the face of social disruption. People are entitled to what they can take. If you want them not to take your life and everything you possess, then maybe give a little before they get that desperate. Any future that involves telling a significant portion of the population to get used to barely scraping by because they "lost the genetic lottery" is a future that is sure to see violent disruption at regular intervals.
...when fits of creativity run strong, more than one programmer or writer has been known to abandon the desktop for the more spacious floor. - Fred Brooks, Jr.