67 Wing
Thanks to HNS from the Government of Malta, on the doorstep of Libya, there has been no major issue with getting UK and other citizens out.
However, we should reflect that Libya and North Africa as a whole is hardly "out of theatre" for NATO/EU Armed Forces. The moot point is what would happen in future if political unrest was to emerge further away (e.g Nigeria?) and HNS support was not a given. That's why even after SDSR the decision to run with at least one carrier was confirmed. You seem to suggest we either need no carriers or as many as the US as only large numbers are viable!
Short of firm evidence that civilians are being killed by aircraft, I doubt that China and Russia would back the use of a NFZ because of the precedent it could set.