Do you feel that this is outside the UN resolution? Should the UN now be demanding a cease-fire and a political solution?
Probably, but whilst they have the bit between their teeth they might as well not leave the job half done. They made that mistake in the first Gulf War, when they should have taken Saddam out then. Think how many lives would have been spared, if they hadn't had to fight a second one with much less of a mandate!
If Gaddafi gets the upperhand again the consequences would be dire for the rebels, and lots of totally innocent people will be slaughtered.