I think you meant to say "religious pluralism." If so, you should know this is simply a modern PC term for ancient pagan "polytheism," or the belief in many gods. That religious philosophy is common to classical Greece and Roman and...contemporary America. It's far from biblical.
The Christian view is: "Blessed is the nation whose God is the LORD." (Psalm 33"12a). Moderns think a nation may have no gods or many gods, but the biblical view is that the only nation that is blessed (over a long time) is the nation whose God is the one God.
That being the teaching of the Bible, I sure hope PHC does NOT "teach the importance of pluralism".
Actually, I meant to say that Christians, are in general, taught to respect the right of others to worship God as they please. Unlike other religions, like say, Islam! Aren't you glad the US was founded on Christian ideals of religious tolerance, rather than Islamic intolerance?