She could had refused it. Not jugding her as it is brave enough to throw yourself at fascists for a political statement but i know at least Rima Hasan refused being expelled. This force them having to illegaly keep an european deputy as a criminal when everyone know what Israel did is piratry as the boat was in international waters. It also put French government as this is french citizen being illegaly detained by Israel and they much rather get them back silently than having to interfere and defend them. Again not blaming Greta just wanna highlight this move that is also brave and brillant