Some other thoughts to consider:
One of the positive benefits is that the fertility rate of Britain is currently high, higher than, say Italy, or Japan (who will make themselves extinct in 100 years if they don't admit that Japanese women are voting with their contraceptives, and why).
However: as that poor Danish sociology professor who got sacked for telling the empirical truth about the results of his study*, the WRONG people are having babies.
A very sad and negative consequence of funding parenting in loose, chaotic family structures is that British children are the saddest. Britain tops the advanced world for depression in children.
I also read a in study this morning about emotional abuse: the severe rise of NPD and BPD (see relationships page for the problems this causes to people), is thought to be a result 'so few of us grew up in a two-parent family, to the fact that more and more single mothers are raising children whilst at the same time having to earn a living, or to the fact that all forms of child abuse have been increasing over the years. It is generally believed that these personality disorders are caused, or at least exacerbated, by inadequate parenting, parental neglect, abandonment and/or child abuse' - Beverly Engel, The Emotionally Abusive Relationship.
*In a study of IQ in Denmark, he found that the general level of Danish IQ is going down - because the highest birth rate is in socio-economic group D (unproductive) welfare dependents. He got sacked.
So: when are we going to be honest, and have an honest discussion, rather than a) assume that the welfare state (as it is currently structured) is an Inherent Good, b) getting emotional and using emotive rhetoric to 'prove a fact'?
After volunteering in a children's home, I truly believe that the welfare state (as it is currently structured) actively rewards immature irresponsible behaviour and because children bear the brunt of the suffering, and they SUFFER, is nothing short of fucking evil (I am not the first person to observe that welfare subsidises child abuse). Good Intentions are irrelevant self-indulgent and actually get in the way of the truth.
There. that is my non-emotional cards on the table
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