A demographic preference for tiredness?

For entertainment purposes only, I thought I’d juxtapose two radically different opinions on the future of the Democratic Party.
From WSJ’s Daniel Henninger in “Why Dems Should Start to Sweat“:

…what we are seeing with this massive legislation is that the Democrats in Washington have a bigger problem: Their party is looking so yesterday.
In a world defined by nearly 100,000 iPhone apps, a world of seemingly limitless, self-defined choice, the Democrats are pushing the biggest, fattest, one-size-fits all legislation since 1965. And they brag this will complete the dream Franklin D. Roosevelt had in 1939.

For an opposite view, Open Left has a piece titled “Why Republicans Should Be Really Scared,” which maintains (with plenty of charts and numbers) that population demographics heavily favor the Democrats:

Not only are non-whites a growing share of the electorate and highly likely to vote for Democrats, but both non-whites and whites are increasingly likely to vote for Democrats. Republicans are in deep doo-doo. This idea has been gaining traction over the past year, but it cannot be repeated enough.

Is this an either or situation, or might both positions have merit?
I mean, suppose the Democrats are tired (I think they are), and that non-whites prefer the tired politics of the past (which I hope they don’t).
To my mind, the latter might suggest that a growing number of Americans are being led instead of thinking for themselves.
That would suck, so I’m going to hope it’s wrong.