Come off it! Italian carriers are sailing now. If there was a real need, they could both put to sea. They'd be short of fighters, but Spain has enough to make Principe de Asturias a bit crowded, & this is supposed to be a joint operation.Charles De Gaulle from France, the possibility of one from Spain - and Italy wouldn't be able to afford to sail her carriers at the moment. I'm being fairly brutal. So I'll agree to 2 and a half if Italy can afford to sail one. The half carrier is allowing for political meanderings over whether or not to send one all the way to the Pacific or whether or not to participate. There won't be a Pommy carrier for the next 8 years which is a real hole in NATO naval capability. The US are reducing their CVNs by one.
What could be put together, assuming none were in repair or refit (I know, a good chance), is one CTOL carrier & three STOVL light carriers with a fairly modest Harrier force - but more than just two of 'em would normally carry, with no need to squeeze out helicopters, & CdG wouldn't need any helicopters with them along.
It's not a particularly impressive force, but it isn't one and a bit. If your point can't stand without exaggeration, you haven't made it.