In Greece, as always, the biggest problematic factor is corruption. Running the news atm is the case of a businesman who forged public documents pertaining to insurance costs of his employees and, hear hear, the public insurance office, IKA, agreed to a settlement with him for the amount of money due. The fun fact is that the settlement agreement for the full payment of the amount ends on 2.404. So, expect popular unrest, but based on corruption, not so much on poverty.
Even though the argument presented is a sound one, it does not take into account the macro viability of such a move (encouraging birth rates). If we accept, for the sake of this argument, that the planet can support an unlimited number of humans then all is well since the global economy is stimulated artificially through birth rates. If, on the other hand, we accept that the planet cannot support an unlimited number of humans, then we are creating an even bigger problem through such an incentive, overpopulation, which will create even more serious problems due to diminishing resources. This boils down to the same essential problem that many consider a sound argument: even though we want to keep an economic system that promotes infinite growth, this is impossible due to limited resources. Unless there are plans to colonize planets in our solar system in the next century, we are just transferring the problem to the future generations.
It is interesting how the EU "considers human rights a cornerstone of its foreign policy..." while at the same time it turns a blind eye to the daily breach of those same human rights in Greece. We even had a coup recently (the economy PM sent a letter to the national energy company telling them to cash in illegal taxes through their invoices despite the court's order, in response to the court's decision that such a practice was in contrast to the constitution of the country) but apparently this is of no issue to the EU.