Here's Turkey's response: How does a humanitarian mission (cue the devastation of Gaza) interfere with Israel's security?
This also happened a few years ago. The Israelis told the them the ship could dock in Israel, the cargo and ship inspected, and then either go to Gaza or pass the cargo thru Israel to Gaza.
Bottom line is, the Israelis stated they had a right to blockade the coast due to national security issues, but would certainly allow humanitarian aid through after they inspected.
Game, set, match.
That is for Israel to decide.
And for Turkey to react to.
The pot is being stirred.