The blame belongs on the inadequacy of the system which allowed her to overstay her visa. She also gets blame for breaking the law which is a given but none of that changes the fact that these are American children. The decision should be in the best interest for these children which is letting her stay. How hard is that for you to understand? And btw your perspective is very anti American , you want to send American children to other countries get a grip and protect American children that's what matters more than your predudice opinion.