myfriend,
Most members of conservative and reform congregations are still halachically Jewish. How long what will continue to be the case is uncertain.
Many conservative or reform “converts” would actually have the status of a safek ger, which is in some respects even more of a halachic problem than if they were out-and-out non-Jew. I’m glad I’m not a rabbi and don’t have to deal with these kinds of problems.