I am trying to figure out whether you are arguing that rights must be absolute or that rights do not exist. If it is the former, I will point out that the rights of one person can infringe upon the rights of other people or the rights of one person can be used to repress other people. Simply put, rights are never absolute. In the latter case, I will simply point out that rights are a social construct. As a social construct, they very much exist yet society will be in an eternal struggle to define what rights are.