Dismissing criticism of the wealthy as "envy" has disturbing elements in common with dismissing criticism of politicians - i.e. both groups have a kind of power over the public that means they deserve and can withstand hard critique (an attitude I consider to be one of the best parts of whatever can be called American culture). Therefore, I think we should allow a little more leeway when considering what might look at first glance like just anger, or just a rant.

*Edited to accurately quote your comment