The Jewish girl who is staying in Israel has accepted that Israelis have a right to occupy Palestinian land. As an ongoing occupier she shares the responsibility of the results of the military occupation of an innocent people.
I don't think a child has a right to leave or is even aware of the details of her country, by your logic even a fetus in the womb of a Israeli citizen must be punished.
Whether you denounce the war or not makes no difference to the Iraqis being thrown into the river after they died today; even if they are never counted (we don't do body counts) every American who is sitting in the comfort of his home is culpable for what his elected government is representing him as.
What kind of culpability are we taking about, death??? I didn't elect this government, I even protest against it, yet I should be punished for it? By that logic every Muslim should be punished for terrorism.