To ask about the 'source' of rights or morals assumes an erreous conclusion. To ask about the source of morals is to assume that such a source exists. As if it existed outside of human constructed systems. The 'source' is the human ability to learn from experience and to entrench rights in our laws and in our consciousness. Our rights come from our long history of wrongs.
When people are oppressed, and human rights are denied - particularly along sectarian lines or ethnic lines - when dissent is silenced, it feeds violent extremism, it creates an environment that is ripe for terrorists to exploit. When peaceful, democratic change is impossible, it feeds into the terrorist propaganda that violence is the only answer available.
This sign I give you: every people speaks its tongue of good and evil, which the neighbor does not understand. It has invented its own language of customs and rights.
The sceptic ultimately undermines democracy (1) because he can see no significance in death and such things of a literal equality; (2) because he introduces different first principles, making debate impossible: and debate is the life of democracy; (3) because the fading of the images of sacred persons leaves a man too prone to be a respecter of earthly persons; (4) because there will be more, not less, respect for human rights if they can be treated as divine rights.
In this statement, my Scipio, I build on your own admirable definition, that there can be no community, properly so called, unless it be regulated by a combination of rights. And by this definition it appears that a multitude of men may be just as tyrannical as a single despot and indeed this is the most odious of all tyrannies, since no monster can be more barbarous than the mob, which assumes the name and mask of the people.
In today's distorted world of 'human rights,' truth takes a back seat to ideology, and false claims - especially those that 'support' radical ideologies - persist even after they have been exposed.
The Declaration of Independence dogmatically bases all rights on the fact that God created all men equal; and it is right; for if they were not created equal, they were certainly evolved unequal. There is no basis for democracy except in a dogma about the divine origin of man.