I think the main reason many of us have weighed in on the Palin selection is pretty obvious -- we are scared of another 4 years of more of the same.
John McCain is supposedly a maverick, and cut from different cloth than the people who brought us Bush II. However, he has steadily moved to the right wing ever since his candidacy melted down last summer. He's hired Rove and Associates, the people that have given us eight years of perpetual campaigning and the most partisan administration in American history -- just look to the Monica Goodling scandal if you doubt that. He's running on Bush's policies. Last January, I said the best situation we could be in as a country would be Obama vs. McCain. Now, I see clearly that a McCain administration would be filled with a bunch of Bush appointees.
For me, the Palin pick crystallized the fact that McCain has become just another Republican of the Rove school of pwoer by any means necessary. For his first executive decision, he didn't pick the person who would be most fit to step in and lead on Day 2, he picked the person most likely to help him win the election despite the fact that she has no foreign policy experience and she didn't know that the VP was the President of the Senate and could be called upon to break a tie vote. That's not country first, that's politics first.
Those of us who didn't choose to support George Bush, but assumed the Republicans wouldn't nominate someone to be President who wasn't up to the job, are understandably concerned about the developments of the last week. Emerging facts about Palin not being vetted until the day before she was offered the spot that could potentially put her one heartbeat from the Presidency scare the bejesus out of not only Democrats, but any American who is paying attention.