It's like all the clubs in Ligue 1 have given up to PSG as their king without a rival. If not we would have seen at least one club that would have challenge PSG and make history for themselves for once. However, the poor financial condition of those clubs is something we need to put into consideration which is one of the major reason why PSG is dominating the league.
You're right PSG doesn't have any major contender in the French domestic league and offcource due to this, the French competition have become less competitive and quite boring to watch. When there's are less competition in a league,it becomes boring to watch. The clubs in the French Ligue 1 needs to step up on their games, spend more money in buying quality players from different leagues to compete directly against PSG for the title. It has gotten to the level when we can now predict correctly who will win the French domestic Ligue 1 back to back even before it start and am also tired of watching PSG winning all the trophies in the French domestic lique 1 as if it now their inheritance.
To be fair, nobody really tries anymore, that's the issue. I can see that both Monaco and Marseille are "trying", in a way, like they are doing their best, but even they fail mostly. I have said this a million times before, and I will say this again, a team that is not PSG shouldn't aim to be the winner, that's very low chance, they should aim to be second best by far from everyone else, for many years.
Did we ever had a team that was second place so easily for five years that they were ahead of everyone else? No we have not, even the winners Lille got bad. So that is why they will never be good. The goal should be second place five years in a row, and if possible, top 24 in UCL five years in a row. Do that, and you will build a squad that can beat PSG after 5 years.