Terrorist sympathizers? Wtf? It was humanitarian mission of many nations.... what are you talking about? Are you blind? Don't you read what whole world is saying about this?
The humanitarian mission was not their main goal. The supplies they brought would not have lasted that long anyway. And even if they would have been let through, Hamas would have seized everything for themselves and used what could be used for further attacks on Israel. Hamas does not give a shit about the people living there. The goal with the flotilla was to put Israel in bad lighting for not letting them pass, which they already knew was going to happen. And thanks to the stupid IDF commanders who treated them as harmless activists, they succeeded.