You sure yuo are playing HoI4 it kinda sounds like EU4 ? (tip: move this topic to the correct forum)
But from what i read it seems you have very low morale compared to the frenchies wich can be from a variety of things, but check and compare:
Military tech
If its not that its prolly some problem with the CK2 conversion or some other mod.
this is not in EUIV forum this is HOI4 forum, he was suggesting you go over there/ As to the problem you facing if you already have 2 tech advantage on them then im sure the computer can have some ideas, like offensive or aristocratic, also what kind of rolls were you rolling RNG might have been bad for you. theres a ton of variables to take into account
1) This is in EU IV.
2) If you read, nobody has Idea's yet.
3) If you read again, I said I'm the second most powerful, France has lower Military Tech by 2.
Obviously its an issue with Morale. That's painfully obvious seeing as how my morale is destroyed in a matter of .02 seconds, but why? I have 2 more tech, more soldiers, better commanders, on terrain that benefits me, literally doing everything I'm told to do to push things in my favor.
If morale is this stupidly overpowered, or under powered, or swings battles this massively, there is a monstrous imbalance issue going on.