Okay sure, it wasn't his fault, he didn't know. But HE DID KNOW HE WAS MAKING A WEAPON DESIGNED TO KILL thousands, even if he didn't know he would kill Prim, he chose to make something harmful anyway.
To harm capitol citizens. He didn't really know what they were going to be used for, I mean he kinda did. I get Ur point. But then beetee also made it. Nobody says anything abt him
Okay but we're arguing about K+G or K+P, not Katniss and Beetee! But sure, we can bring Beetee into this. He definitley told Gale 'you;re going to be killing innnocents' and Gale was like, oh cool sure.
ALSO Gale clearly doesn't care about his relationship with Katniss, seeing as when he heard people were needed to go save Peeta from the Capitol, he went, even though he knew he would want Katniss and Katniss would want him.