I do think there is some truth to the argument that individuals' actions have global consequences. However, I do not think the US Supreme Court has real claim

I do think there is some truth to the argument that individuals' actions have global consequences. However, I do not think the US Supreme Court has real claim to be the final, global arbiter. Usurping power is, however, the US Supreme Court's demonstrated prerogative. It's pretty much how the institution began its life.