Just because it's written on a document titled "Human Rights" doesn't make it so. The UN UDHR is really just a wish list of things that would be nice to have in any country. It is emphatically not a well thought-out legal document that would form the basis of a a country's laws.

Read about the recent Chilean constitution reform for what happens when people try to write a constitution based on things that would be nice to have, without seriously considering all of the nth-degree complexities that would result if those nice things were to actually be put into reality with the might of the state.