At the start of July 1940 the British, fearing the Axis would takeover the French fleet, delivered an ultimatum to the part of the fleet at Mers El Kebir in Algeria. The French were given a few options: sail with the British and fight the axis, scuttle(?) or go to the West Indies or possibly the US. The two sides couldn't agree and the British bombarded the French ships.
What if Admiral Gensoul had pretended to go along with the West Indies option and sailed out with Provence, Bretagne, Dunkerque and his other vessels, but then suddenly attacked the British fleet (which I presume would've escorted Gensoul's force to make sure it went where it was supposed to). Would the French fleet have stood a chance against Hood, Valiant, Ark Royal etc?