Please, so that we can test such an assertion:

1. Define human rights

2. Provide a methodology by which they can be objectively known.

Is a right to be left alone to one's culture a human right? Is a right not to be deprived by outside powers of one's native language a human right? And who gets to set the limits on the outer limits of such a right? (i.e. is the right to advocate the position that genocide of, say, black folk, is desirable a human right? What about pornography?).

My own sense is that usually these have no epistemology behind them and are based solely on projecting one's a priori assumptions onto the world.

Why? Pornography is speech too.

when a private entity chooses what it displays to the public I have no qualms with it, its censorship when a government entity chooses what you can or cannot view, say, or read.