who is a Jew should be decided by Jewish law! and it should be in a way accepted by all Jews, non orthodox conventions are not recognized by Traditional Jewish Law and consequently not recognized by Meany Jews. if the state of Israel wishes to accept any individual as a citizen that is perfectly fine, however it is not the place of the government to decide who is Jewish.
Judge orders Jerusalem Gay Pride attacker to undergo psychiatric evaluation (Haaretz)
from the article: Reform and Conservative Jews fuming ahead of Knesset vote on conversions