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You summed up their words as: "General attitude: They'll get over it and we want to reach out to Republicans and Independents anyway, so who cares?"
Reading the article, we find that you are distorting, if not lying, about what they said.
Here's a quote from the article:
“I think there are always immediate feelings of disappointment and anger,” Anita Dunn said. “But in the months ahead, he must appeal not just to the constituency groups who favored her in the primaries, but those he wants in the general election, and that includes independents and Republicans.”
See what she said there? It completely contradicts how you summed up the campaign managers words.
And this:
Another Obama adviser, who asked not to be identified, said that he was not worried that Clinton supporters would stay angry.
“Look at how many switched today to Obama,” he said. “Look at the Clinton supporters, look at Maxine Waters [the congresswoman from California who endorsed Hillary Clinton in late January but switched to Obama on Tuesday], who were passionate advocates for Hillary, but who switched to Obama.”
He's not saying Clinton's supporters should be dismissed. He's pointing out that many Clinton supporters are already moving to support Omaba -- on their own. Since many are already moving toward Obama without having to be wooed, then it's safe to assume that getting Clinton's supporters with effort (as Dunn says the camp will do above) won't be a problem.
Now, some of Clinton's supporters WON'T get behind Obama. You might be one of them. It would be a shame, however, if you or others, don't support Obama because your anger in the moment blinds you from what is actually being said. From your posts it seems to be you seem to be seeking out and nursing grievances. The fact that you so completely mischaracterized the statements of these campaign mangers only lends credence to this point of view.