If you compare Ligue 1 with other competitions such as the English League, Bundesliga, Serie A and also La Liga, it is clear that there are really very significant differences that we can even find differences in the competition within this competition.
Ligue 1 is not able to show very competitive competition because there is only one team that dominates, in fact Ligue 1 is far behind other leagues that have recently become popular, such as the SPL from Saudi.
But in the future, I sure there will be quite significant differences, including the development of every other team will definitely be much better and PSG dominance will decrease slightly because they certainly won't have truly perfect performance like before.
Belief that Ligue 1 can get better can also be proven by several team that previously performed poorly, now showing their performance is capable of developing with big changes.
I would say that the difference in finances made France as big as it is right now, but they never really had any big interest towards football as a country, not in their culture all that much.
A ton of racist people complain about the fact that France national team is all black, and claim they are not "French", with the way world politics right now, I understand the complaint because we have tens of millions of immigrants all over the world these days, but most of those players were born and raised in France all their life, most of them even had their father born in France, because France has been a multi-cultural nation for a long time.
The trouble is that, cultures of other nations they combined have football as their favourite spending time, but French people rarely do. This causes Ligue 1 to have a lot of money because it is a rich nation, and a lot of talent, but not enough interest shown like other bigger leagues.