How then can we say we are equal? We cannot

Human rights teach us in a direct, straightforward manner that we are at the same time identical and different. (Boutros Boutros-Ghali)

As a matter of fact, human rights law is not about establishing equality, but protecting individuals from discrimination. You should not be discriminated against simply because of who you are or what you believe in. The law applies equally to rich and poor. The migrant worker is entitled to equal pay for equal work alongside the national of the country in which s/he works. Women have the same rights as men.

But a woman's place is in the home caring for her family!

In many cultures this is the traditional role of women. And if a woman wishes to be in the home that is her right. It is also her right to work outside the home if she wishes and receive equal pay for her work. It is the duty of the State to make this opportunity available.

When you talk of the duty of the State, I thought States could do what they wanted inside their own country and tell other States to mind their own business and not interfere in the affairs of others.

This is what is called 'national sovereignty', which calls on States to respect each others' borders and political independence. However, there is a difference between meddling in the internal affairs of others and taking steps aimed at getting governments to observe standards of conduct to which they have committed themselves.