I would agree with this when I start seeing any force deal 2000+ damage. Even knowing all of the enemy's weaknesses I almost never see any force out damage a hunter or ranger. I agree that force should be more difficult, but I also feel that it should scale better than hunters or rangers, and I don't see that. I would consider myself to have high quality end game gear.
Example from a game I played just recently: We were running Power Plant Plight, and were in the 2nd room where there is the wall of mericarols. I pulled out my lindcray and started taking shots at the closest one. I was doing 970 with spirit special, 30 shift and 30 zalure. The ranger in the group (forgot who) took out his yas mechs and was doing the same damage per hit that I was with my single shot rifle. Even if I were to cast my spells, I would maybe deal 300 if I was lucky and it's resistance was low. This is horrible for something that has ammunition. Admittedly I don't have any "nuking" gear. But lets be honest, when you have maxed ATP and are using the best damage rifle for you're class and not matching 1/3 of the damage that other classes do, it isn't that it's more challenging to be good, it's that you're class just isn't good.
A whole class shouldn't be limited to 6 spells (J/Z/S/D/resta/reverser) and demon special. Especially when there are 15+ spells total.
Onto my point:
I think that Forces (especially formarl and fomar who are suppose to be good at this kind of thing) have too little ATA. I'll take a video sometime and post it, but with Smartlink, max ATA, and 100% hit I only hit on average 2 times with demon special on typeME\mech on a full combo. I understand that forces should not have the same familiarity with guns as rangers do, but they should at least have the same as hunters.