You’re spot on! It is obvious PSG’s dominance in the French league is because of how rich the club is, they have the finances and influence to build their team to a certain level unlike other average teams in the league that are unable to make significant and noticeable signings to build their squad to match PSG’s squad and gives them tough competition.
That is just the fact. PSG are the only strongest and more favorable to dominating the French league, mostly in every season, which we all know. They are the richest in the league, and it will not be easy for any of the other teams in the league to even be a threat to them. That is why most of the time, the Ligue 1 games are always boring, because there is not that much competition in the league, and this makes the game look so predictive and boring.
I don't think that PSG dominance in the French ligue 1 is only due to the fact that PSG is rich I will not agree with you on that because in today football there is financial fair play rule that applies,so a team can't go and bring money from another source of income to sponsor a team the truth is that other teams in this league are not just serious about competing and this is not only limited to the French ligue they don't even do well in European competitions.
Until the rest of the clubs start to think about winning a trophy and challenging PSG they will continue to be under the shadow of PSG because looking at the just concluded transfer market how many teams in the French ligue 1 actually bought top quality players.
I have also defended the same thing, I even gave the example that Mbappe was a Monaco player, and with Monaco he did not win Ligue 1 consecutively, he was not even famous at Monaco, and was sold to PSG where he was more valued and became popular, at PSG he was not valued because the club is rich, in my opinion
he was valued because PSG has managed to hire good coaches who knew how to guide Mbappe well, and that is what the other Ligue 1 teams are missing, they need to have good coaches and management that is committed to winning titles and not just thinking about selling players to have a lot of money and not doing anything relevant for the club