No, B., it's about equality and treating others as you would expect them to treat you.
The Turks are NOT the most important people on the planet. All people are equal. If one group decides to subjugate another, that is not acceptable.
Because of Turkey, the GCs are suffering themselves and the priority from our angle is the GCs' plight. We have to help ourselves before we are in a better position to helps others. The Palestinians, Lebanese etc, even Israelis' rights; can gain further support from us if we weren't ourselves weakened, from qualitatively supporting justice for all.
Strengthening the GCs by restoring their homeland will strengthen long-term stability in the region. The stability which has been undermined for decades (centuries?) by Turkey, which even NOW is further threatening neighbouring nations.