First, last time I checked Greta isn't registered as a democratic voter, her not being an American citizen being the primary tell.
Second, the stated goal of the flotilla, or large group of small boats, is to be the largest attempt, in terms of the number of boats, to break Israel’s maritime blockade of Gaza, which has now lasted 18 years, long predating the current war. It's got your attention which is all the organizers aimed to deliver. They aren't planning to sneak large amounts of aid past the Israeli government so you are judging them by the wrong measuring stick.