Do you think Israel should send them rockets too? They don't seem short on that. And they don't use it for 'self-defence'. They shoot into civilian areas in Ashkelon and Sderot, from land given them for peace.
If a person attacks you with a knife, do you give him a gun 'just to make it fair'? Or do you defend yourself?
Also, on the flotilla, the activists did have weapons. Which was the problem. If they had said: okay, search the boat for bombs and missiles, it's fine, we don't want to kill you all. Israel wouyld have searched the boat, and delivered the aid. But no, the activists had to storm them and throw them overboard and pelt them with metal rods. Doesn't sound like self defence to me.