Socially, children are dependents. If guardians cannot feed their dependents adequately, they should lose their dependents. In the same way we find people guilty of animal cruelty all the time for the same reasons the same must be made of children.

The unfairness in the system emerges from when parents have kids through selfish motivation only to force society as a whole to pay the cost of raising them, when we may or may not have macroeconomic desire to have more children at any given time (and that desire changes, at the society level, all the time).

It is much more important to fix the actual problem - providing sufficient adoption and relocation systems to get kids out of dysfunctional households than to give them awful school cafeteria food and hope the problem goes away while ignoring it. Hunger is just a symptom of broader abuses that we should not just use state dollars to make go away temporarily. Having mentally and emotionally healthy fresh generations is probably the most valuable investment anyone can make.