The problem with this sort of issue is that it is seen as an opportunity to have a go at all sorts of targets - obese people, people who smoke, people who drink, people on benefit, people on drugs, people who are not British citizens, people who take part in certain sports, etc etc etc.
Whether you think this lady is irresponsible or not, the babies have been born and they need to be cared for and, in my opinion, that is the crux of the matter. Once we get into "deserving" and "undeserving" territory, it is impossible to encompass everybody's view of who is entitled to something and who is not.