Well they would! They have learnt form The wicked witch of argentina (spelt deliberately with a lower case) and the previous despot Galteieri (not sure about spelling of that)
Now it's really going to get dirty! Spanish minister to meet Argentinas Hector Timmerman about a joint effort at the UN to ignore peoples wishes to be British and to take what's ours by popular yet undemocratic processes. GONNA GET UGLY!
Gibraltar is definately British. Not because of those that now live there but also those that did. An anglo-dutch force took Gibraltar in 1704 during the war of the Spanish Succession. In 1713 the rock was ceeded to the British within the treaty of Utrecht 1713. Important, dominant Royal Navy...