We're not mocking all older voters. I think what you say is generally true, but there are lots of older folks out there who are tidally locked into liberal groupthink.
I personally don't understand how anyone can survive past middle age and not wake up to what the Dem/left really is, but it's a fact. Some folks are just that unaware.
The facts of voting by age are well known, the elderly are the most anti-Obama voters and the young are the most pro-Obama.
We will never see the under 30 voting again that we saw for Nixon and others, the young today are a large liberal voting block.