A general outlook on this problem. I think we need to first be humble and realize that “modernity” presented a huge new era that Jews were not challenged with before. There was a lot of upheaval after 2nd Hurban and this is probably comparable. We had several moments with very narrow paths through which Jews developed, such as Yavno; remaining students of R Akiva….
We are “just” a couple of centuries in. We lost a lot – assimilation, Reform, communism, Shoah. It is not just a fault of Reform that they became Reform, but a joint failure of Jewish communities that we did not offer the right response. We eventually developed several models that survived. Maybe if early Reform will see current structures, they would end up at YU or at 770 or at Beis Mussar or at a Tisch, depending what exactly they were searching for.
so, at minimum, we need to appreciate that all current shitahs are part of this survival process and we need to hang in together. We are now wiser than 200 years ago and a lot of “hot” topics are resolved. Not many observant people now are converting to traditional religions, or going into Biblical criticism, or leaving because they need to work on Shabbos.