The answer to the following questions is as follows:
1. slavery, but it still flourishes.
2. No protection exist. It is a fallacy.
3. The UN is a massive hoax, where other countries come to the USA and commit crimes and claim diplomatic immunity. The UN building is a waste of office space which should be generating tax revenue for New York. The UN has yet to produce one positive result.
4. None, since the UN has no interest in human rights.
I hope my answer has come to your help. God bless and have a nice day ahead!