ITA!! And, I applaud you for being so honest, in a discussion that is often "danced" around. I think it is mainly caucasian Americans that take issue with the African American label (and, before we go any futher, I am caucasian). I think the real problem here (correct me if I am wrong), is that all words used to describe African Americans previously were "put" upon a race of people. These words...some nicer than others, have all come to have certain "negative" implications.
The truth of the matter is this...Africa is not a country, but a continent. So, when people in this country make comparisons to Irish-American, or otherwise...they are, in essence comparing apples to oranges. The true comparison would be "European American"...something to which NO one identifies (at least, not yet). Ironically, this is the complaint I hear most often from detractors of the use of "African-American".
Joy...I think you used "descendants" when you really meant "ancestors". I TRULY imagine you actually know where your "descendants" came from!!