Well, yes and no. Suppose the federal government started sending out bonus checks to everyone but Catholics. You could say that no one was entitled to the bonus checks, so it isn't depriving anyone of some natural right.
Anyhow, I hope that illustrates the reasoning that is usually used in these issues.
If my neighbor "artist" gets federal funding for his "art" depicting traditional art then I should also get federal funding depicting blasphemous "art" or racist "art".
If you want to depict a crucifix in urine, then do it on your own dime, not on the federal taxpayers. If you want the computers internet connection hooked to porn, then do it on your own dime, not on the federal taxpayers.
Federal Funding should come with string attached. If you don't want the strings, then don't expect the federal funds.
Ashland, Missouri
On the other hand, libraries don't stock every publication that is printed, either, and that's censorship too, if you want to make that argument.