Ok, so then it comes down to whether or not it is "human nature" to always have a biggest gang (willing to use aggression to feed itself) around. If not we are doomed to "rape" and are only trying to limit the pain of the rape. Historically this seems to be very common.
Rape or be raped is what daddy always said.... *feels guilt at this joke :-( just pretend I never said it
In all seriousness .... no the government should not be providing social safety nets, they are completely and utterly incapable of doing this effectively, private organizations (both smaller and localized with possibly wider interconnected relationships to other organizations) serve this purpose much more directly and efficiently. Also, humans are particularly resilient creatures, when left with no guaranteed safety net provided by someone else we often take certain precautions to make our own safety nets and this is how it should be. Families and communities should be held accountable for their own and when the problem is too great for them alone be on good relations with their neighbors, it'd make the world a better place.
The government should be there to defend our civil liberties and god-given rights, we need to be smart enough to not hang ourselves in the process.