Context: In the previous page, the other character is complaining people are misunderstanding/drawing fanart of her manga on twitter, so her colleague tell her this. Her answer after this is "no way I could do that."
My reading is that 訴えれば is "should we sue (them)" or maybe "bring the issue to their attention"?
To which then he add
どの作家もやってないだけで全然勝てるんじゃない?
I understand "どの作家もやってない" is "it's not something any writer do", but I'm stumbled on the usage of だけで here. "Just by being something no author ever did, you can win it?"