
I completely agree.
The same thing is happening in my own family, but regarding gender rather than race. My entire family votes democratic and every woman in the family other than my mom and myself have voted for Hilary and numerous of them have specifically stated her gender as a reason to vote for her. One of them said, "Women have to stick together--how will we ever get a woman elected if not Hilary? Who else will have a better shot?" Another one said, "Men have been president for hundreds of years and women have never had a shot. It's our turn now."
Clearly for them it is not merely about favoring a particular gender and they are not sexist against men. They have happily voted for men their entire lives and will do so again if Hilary doesn't get the nomination. In congressional races and state and local races they don't make a big deal of voting for the female democratic candidate over the male one because in those cases the glass ceiling has already been broken and the numbers of women in those offices has risen above 0% (Though it's still abysmally low at 16% which is quite amazing when we consider that Afghanistan has 27%!) So it isn't that they think one should always pick a female democrat over a male democrat.
And a big difference between those who
are voting for Hilary because she is a woman and people who will vote for a man over Hilary are the reasons that support this decision. My aunt and grandmother don't assume that merely because Hilary has a ****** she will be a better president than Obama or that men as a group don't have what it takes to be president or that Obama will get his time of the month and screw something up (all of these things actual sexists my father works with have given as reasons for NOT voting for Hilary--now that IS sexism.) It's more that given the two of them are so similar and either would be a fine president, they want to use this election as a chance to make history for women. They rightly find it absolutely disgusting that in 221 years of our nation's history, no woman has ever come close occupying the government's highest office. And that fact is in marked contrast to 42 other countries which have had a female president or prime minister.
(Now I do have one problem with that kind of thinking--I don't understand why they privilege the history-making event of the first female president above the history-making event of the first black president. For me those things are equally important and so making history doesn't help me decide between the two candidates.)
I suspect that the situation of many African-American voters choosing Obama is very similar to the situation of my own female relatives choosing Hilary.