Imo. Galia combines everything that is bad for activity.
1) bad position
2) very hostile enviroment
3) difficult acces
Teaming up with another house that have activity problem and policy of not thrusting foreigners is not a viable way to do... well... anything. Alliance with corsairs would help but first they need to find something they have in common. Other than enemies.
I think it would be awesome if gauls would employ corsairs much like privateers.
Another thing that would help would be having galia equivalent of purple goddesses(they have lasers and (useless)pulses but thats all). Gallic freelancers with pure gallia tech and all.
Another thing is that factions that were supposed to work with/expand to galia are still rephacked against them. Certain kusari quasi-lawful faction comes to mind. Possitive rephacks would help. Or a least neutral rephacks.
Another thing would be making gallic import/export OP given how hard is getting in/out. That will atract at least lolwut traders, which would attract pirates and give police work to do instead of skipping the process and letting police pirate traders as it is now.
Edit(after more research): Gallic civilian laser: Weakest hullbuster. (class9: about 200 hull damage per second more damage than rogue class 8 gun for 1/4 more power drain)
Gallic civilian pulse: Weakest shield buster. (class9: less shield damage than corsair pulse class 8 using more power. Doing 100 shield damage per second than debs class 8 using 1/6 more energy)
Gallic civilian other: Missing entirely.