Does it have to be 'space marine'? Can he change it to 'galactic' or 'interstallar' or something else that would be less infringing? I know it's disheartening

Does it have to be 'space marine'? Can he change it to 'galactic' or 'interstallar' or something else that would be less infringing? I know it's disheartening but this isn't the battle he wants to fight. Someone with deeper pockets will fight it someday. It's enough to spread the word about GW's legal bullying and let us all make our own decisions on whether we want to purchase their products.