Why can the Power of the Court be Questioned in a Negative Way?

-No Power of Initiation. It must have Cases brought to them from other Courts usually -No Power of Enforcement. The Guantanamo Bay Cases clearly set this out -Rulings overturned, though, this happened Once (16th) -Seems to be Responsive to the Public and Selected Branches. Lack of Gun Control Cases was sort of due to the Controversey of the Topic. Amicus Briefs from the Public or Congress allows Influence from them. In Macdonald vs Chicago (2010) there was 309 Congressional Members signing Amicus Curie