Nothing is being done "In the name of Judaism." Israel's Jews are fighting for their survival and they don't need armchair critics calling the shots. If American Jews choose to support them, good. If not, then too bad. It won't be the first time American Jews fail to support their fellow Jews. Just ask the Jews of Europe.
Netanyahu at Holocaust memorial ceremony: Nazis slandered Jews before destroying them (Haaretz)
from the article: Will 2013 be the year American Jews secede from Israel?