One way to conceive of French culture is that it can be seen as a blend of an original Celtic (Gaulish) substrate, a first Italic (Roman) adstrate (of which the French language is a major sign), and a second Germanic (Frankish) adstrate (obviously with other more minor regional influences). This kind of cultural taxonomy didn't really come into fashion until the era of 19th romanticism and ethnic nationalism, and in anthropological/linguistic circles today is considered oversimplified and problematic.
However, at the time of the 1789 revolution, could there have been some faction or philosophical circle that began to identify the Ancien Régime (and perhaps by extension all French monarchies) as Germanic interlopers into what was essentially and popularly a Romano-Celtic nation? And, assuming there was such an element among the revolutionaries, and assuming that they managed to gain positions in a revolutionary government (admittedly a big assumption), could they have initiated a program of Romano-Celtic revivalism in French culture? What would this have looked like, and would it have resonated with the French populace?
However, at the time of the 1789 revolution, could there have been some faction or philosophical circle that began to identify the Ancien Régime (and perhaps by extension all French monarchies) as Germanic interlopers into what was essentially and popularly a Romano-Celtic nation? And, assuming there was such an element among the revolutionaries, and assuming that they managed to gain positions in a revolutionary government (admittedly a big assumption), could they have initiated a program of Romano-Celtic revivalism in French culture? What would this have looked like, and would it have resonated with the French populace?