The viral hit’s most political line isn’t about the rich at all — it’s a swipe at the poor rooted in ignorant stereotypes — First, the viral country hit by Oliver Anthony, “Rich Men, North of Richmond,” isn’t as bad as some believe. Musically, it’s simple — a positive feature in today’s world of over-produced country tunes — Anthony’s voice is strong, and in theory, a song taking swipes at elites in Washington DC…