It's an interesting thought
...but one which holds as much water as the American carriers did after Pearl Harbour!
For a start, it takes more than a year (ie Nov 40 to Dec 41) to build aircraft carriers and decent aircraft to go on them, and turn those components into a strike capability (HMG please take note
). So while the Japs were no doubt impressed by Taranto, it only served to re-assure them that their existing development of carrier strike would be worthwhile.
Besides, although noone knew it at the time of Pearl Harbour, the Germans had already lost the war by that stage (in fact, as soon as they launched Barbarossa). While the American contribution certainly hastened the end of the war in Europe, the outcome was inevitable so Pearl Harbour made no real difference. And by the time of Pearl Harbour (in fact, by the time of Taranto), there was no credible threat (of invasion) to Britain hence no need to 'save' Britain.
If any aircraft saved Britain, it would be either the Battle of Britain fighters or the Coastal Command types which defeated the U-Boats.