Avram > Chabad certainly is not the only group doing kiruv,
First Chabad does not do “kiruv”, they do no not (or at least not supposed to) look down at other Jewish people. Others have organizations that work on this. Most observant Jews, whether charedi or YI, go through their day without worrying much about their non-observant brothers. Jews used to have missions sometimes. For example, supporting Jews in EY, whether yeshivos or workers. There were wedding announcements in newspapers with a lists of guests and how much each donated for EY. The fate of disappearing Jews is not on the radar. This does not take away from shortcomings and problems that exist in the movement. but need to be modeh al haemes.