@revelette,
I followed the link you provided to the palin rant against Michelle Obama. The funny thing is that there was another piece provided by yahoo this morning on Michelle that made me feel sorry for her.
Michelle lives in a fishbowl, although she hardly the activist First Lady that Rosalynn Carter or Hilary Clinton were or the constant presence that Nancy Reagan was. On the other hand, she is not as out of sight as Laura Bush was. That's fine.
What we seem to forget is that each First Lady is first and foremost an individual woman who just happened to have been the wife of a man elected to the presidency.
Palin and her daughter (on Dancing with the Stars) have publicly whined about the criticism they receive. If anyone should be sensitive to Michelle's position, it should be sarah.