|The numbers don't always add up|
So why don't they do something? It's clearly a conscious decision on the part of party strategists to accept the complete loss of the minority and gay vote, and the largest portion of the youth vote. The answer to this question can be found, as can so many other bits of convoluted governance theory in the US, in our national original sin, that Peculiar Institution, slavery. While Wilson and Madison very much preferred a popular election, they recognized that such a proposal stood no chance of success due to the differences in suffrage in the north and the south. At the same time, a system where the President was directly elected by congress ran the risk of an executive beholden to the legislative, diminishing the usefulness of the separation of powers. So they proposed a system where each state would choose a number of electors equal to the number of Senators and Representatives from that state, and those electors would actually cast the votes that elected the executive.
This 'Electoral College' - the term does not appear in the Constitution, but was formalized in federal law in 1845 - is, remarkably, still the system in use today. Now, there are many breathless discussions of how this system could be used to undermine the will of the people - indeed, there is no actual requirement that electors vote for the candidate to whom they are pledged - this is highly unlikely because they are pledged to that candidate for ideological and political reasons. Rather than some kind of inside skulduggery, the Electoral College instead radically changes the demographic realities of a national election. There are about 150 million registered voters in the US, and about 120 million of them can be expected to vote in a Presidential contest. With so many states uncontested 'Red' and 'Blue', a national election isn't dependent on the popular vote, but rather on a few hundred thousand 'swing' votes in highly contested states. And many of these states and regions within them skew to white, christian, rural voters.
You can see the inherent Democratic advantage reflected in the numbers they have locked in already. It's kind of interesting that the vast majority of those 191 starting electoral votes come from just four states - California, New York, Pennsylvania and New Jersey. So you can see quite clearly what this election will be about. The Republicans will be trying to win votes in the Rust Belt, while the Democrats try to exploit changing population dynamics in the Southwest and Southeast.
But with all the dust and smoke and Ben and Bernie in the Primaries, keep this in mind. The campaign is going to be about a few communities in a few states in odd corners of the country. Your vote almost certainly is meaningless - unless it isn't. This could very well be a close run thing.