While I agree that happens, in your quote just to be clear, Robert Johnson isn't a member of the Congressional Black Caucus (or of Congress), he's just a very wealthy black businessman (founder of BET) who wrote his opinion opposing the estate tax in a letter to the House Ways and Means Committee. I haven't been able to find whether any members of the CBC actually agree with it. Most of the Caucus's members tend to vote fairly "left" on taxation-related issues.