2: what are the difficulties of making respect for human rights a major consideration in conducting foreign policy?

The main obstacles of a human rights based foreign policy is issues such as sovereignty, and compliance of the one's state..
Sovereignty is the principle that states are independent and hence have the moral right to determine their own destiny and especially that of her people. in walking the talk, compliance issues unveils, whereby, a state that seeks others to honor human rights must themselves reciprocate and be above board.