"a basic income that declines as they have more kids" ? The people who this hurts the most are the kids themselves - the ones who aren't at fault and who, give

"a basic income that declines as they have more kids" ? The people who this hurts the most are the kids themselves - the ones who aren't at fault and who, given different circumstances, are perfectly likely to make it into the "productive" class. And since the incentive is applied after the kid is born, it hasn't really helped anything. Plus, there are already pretty strong economic disincentives for having lots of children, and it doesn't seem to be stopping anyone. People (particularly low income people) are not rational when it comes to children.