Because they have money, it's not fair for A class player to fight with C class player. If other teams have the same financial status, every teams will have a same chance to become a champion. Take a look with Serie A, there's no big gap from top 1 to top 3 teams, that's why either of them are become champion.
While PSG is like a combination of 3 teams in Ligue 1 lol.
That's the reality in Ligue 1. so don't be surprised if the champion every season is PSG, even though there are clubs like Lille and Monaco who have competed with PSG. but still, PSG is a very rich team and there is quite a distance from other clubs. that's what makes the competition in Ligue 1 less interesting to me.
This season may not be much different. there are no strong competitors for PSG in Ligue 1, but hopefully there are and it will definitely make it more interesting for a competition. maybe it will also help PSG to develop with better competition. because competition in the league also helps them develop when they later face other strong clubs in the Champions League.
PSG is actually no different from Monaco, Lille or Lyon before they were acquired by Nasser al Khelaifi in 2011, previously PSG was even a small team that was not better than Monaco but after the acquisition occurred PSG's finances improved and became the biggest club in Ligue 1 as seen today, financial strength is the main force that continues to be relied on by PSG today so it is very natural that they are too easy to dominating Ligue 1 all this time, but what confused me all this time, is that why nothing other big investors are which interested to acquiring other teams in Ligue and I don't know what the reason is, but I think that in addition to succeeding in dominating Ligue 1, PSG may also has managed to enter French politics which prevents and makes difficult way for other investors to invest in teams like Marseille, lyon and also other rival teams from PSG so far, the thing that makes me inclined to think that Naseer Al Khelaifi also tends to dominate French politics is when President Macron intervened and blocked Mbappe move to Madrid previously, but to be honest it is just my view when I see the difficulty of the PSG having a rival team that can rise to match their financial strength so far.
Without large investors who are willing to invest in other teams in ligue 1, of course it is difficult for us to see an increase in competition that occurs in ligue 1, so we cannot deny that it will continue to benefit PSG in winning ligue 1 and qualifying for the champions league so far, but on the other hand PSG mentality will still be difficult to develop when they play in the champions league because the ligue 1 competition which is bad and too easy.