Adam Shapiro, one of the organizers of flotillas to break the sea blockade of Gaza in 2009 and again in 2010, was interviewed on PBS. In the interview, Shapiro made clear that the primary purpose of the flotilla was political.
Only upon prompting by Gwen Ifill did Shapiro even mention a supposed humanitarian purpose:
Shapiro was right to the extent that he recognizes the blockade as political, and the flotilla’s purpose primarily as political. The shipping of humanitarian supplies merely was the excuse and the tactic.
Much like the internationalists who have aligned themselves with Islamists on the West Bank to protest the barrier built by Israel to stop suicide bombers, the goal is the destruction of Israel.
Whatever it takes they will do, and it if means putting civilians in harms way to gain publicity and international condemnation of Israel, they will do that.
Useful Idiots Condemn Israel
Mr. Netanyahu, Tear Down That Wall For Our Suicide Bombers