You know, couldn't avoiding the July Monarchy's experiment with only enfranchising a narrow, middle-class section of the country help to prevent leftist-republicanism from being such a big thing later on?
You could potentially take a modicum of wind out of socialism in France by preventing the popular overthrow of the Bourbons (again) from being subverted into a perverse elitist idea of what democracy has to be if it isn't going to be the Reign of Terror all over again.
I was just thinking, it could be one of several things that could go differently in 19th century France to prevent as much polarization between republicans and monarchists.
Maybe the Marquis de Lafayette accepts the offer from the revolutionary committee in Paris to become dictator, rather than inviting the Duke d'Orleans to form his ill-fated experiment of a monarchy. Or, because that would set a bad example for constitutional government, maybe as head of the National Guard, Lafayette could at least extract an iron-clad guarantee of the franchise for every French taxpayer (his main political goal, according to Wikipedia at least) from whatever republican or constitutional monarchy regime could emerge from the July Revolution.
And for you guys curious about a commune in France, why not go earlier than the Paris Commune and channel Les Miserables with the June Rebellion (something that could be avoided by avoiding the July Monarchy)?
For the ultimate save-France-wank, how about instead of fleeing France, Lafayette leads the Gardes Nationale to ouster the Jacobins in 1792? Sure the mobs would still hate them, view liberalism too insufficient of their increasing radical demands even if Lafayette and others concede to republicanism, but maybe combined action of the Gardes in Paris and provincial levies, instead of just the provincial levies as per OTL, could restore order and save the moderates in the National Assembly from the guillotine.
Or, on the topic of a less polarized France with no July Monarchy turning the bourgeois republicans and working class republicans against each other and no failed but dramatic anarchist revolt two years later, maybe simply things like that in a timeline to have a less polarized France could result in a more stable French republic, as republicans are less leftist as a whole and conservative republicans and clericalists are firmly in the republican parliamentary group/ideological camp rather than consorting with monarchists? Well laicity is good and all, having a stronger and earlier Christian Democratic movement in France, and maybe having the Vatican officially ask French Catholic activists to recognize the legitimacy of republicanism earlier than it did in OTL might be good for the overall arc of French history.