This issue is not so clear cut to me. On the one hand the mother should have the right to make her own decisions about childbearing. But on the other hand, with rights come responsibilities and this woman obviously is totally irresponsible. Is it a right for her to keep having drug-addicted babies which she cannot support and which ultimately become wards of the state?
I agree with this statement. This woman isn't just stupid with her rights, but she's abusing them, and this abuse does affect other people - her children. The basic tenet of libertarianism is that you have the right do pretty much whatever you want so long as it doesn't harm other people, but in this case it definitely harms someone.