I don't think I argue from social needs. I solely argue from individual needs and rights; the need of the individual to food and shelter; the right to existence; the appropriation of the common good for individual property. Please let me know if I diverge from that at any point, since "social needs" are highly subjective, whereas the individual needs usually aren't.

Addendum;

Sure, society can always compel and force somebody to obedience. That's why a society usually tries to monopolize the exertion of power through law enforcement. That might even give society the power to expel a homeless mother along with her children from a house that's been empty for 35 years.

My argument is not about ability but about morality.