Meaningless as in without meaning. It ignores the massive increase in black voters when a black man was on the ballot for president via a major political party.
Personally, if I was a black man and a black man had a real chance of winning the presidency, I would have voted for him for that reason alone too. I would have done it to show the young blacks that there is no longer anything they cannot do.
Massive? The numbers say it's significant, not massive-
http://www.nytimes.com/2009/07/21/us/politics/21vote.html
Greater participation by minorities & younger voters obviously scares the piss out of older white conservatives, even though it is a more honest representation of the population.
Get used to it. If Repubs' views actually represented the views of more Americans, they'd win more elections the honest way, wouldn't have to resort to voter suppression tactics.
Massive participation would lead to massive Repub defeat, just because there aren't that many blind zealots to overcome majority sentiment. You already know that, of course. Everybody voting is the most frightening thing that repub strategists could ever confront.