how suicidal are we?

How suicidal as a nation are we that we would subsidize the least successful among us to reproduce?  Our welfare system should be providing strong-- and successful!-- incentives for these people NOT to reproduce.  I think the taxpayer would be much more amenable to providing a reasonable 'floor' of income, housing, etc. and the social services to support it, if he could also be assured that the number of children would be limited to, say, one for a single mother or two for a married couple on welfare.  Then we could concentrate on trying to help these people and their children make their way in the world.  But if they are allowed--or even encouraged, by higher benefits-- to dig the hole they're in even deeper by having more children, the prognosis is unavoidedly grim.  We can't allow these people to reproduce us into being a third-world nation.