The Labor party is ideologically bankrupt. People don't really want Socialism/Communism. Labor is losing votes because it is unpopular, not because the Leader is bad. Laborites keep on kicking out their leaders. Herzog hasn't even taken the job yet and HaAretz is already calling for his ouster!
Drone crashes near White House, man faces charges (Reuters)
from the article: Israel's new Labor Party leader doesn’t bark or bite