Exactly what I need to make all my points!
So the system that you keep using to care your opinions on, is not foolproof. It depends on how one views the individual pieces inside of it. I have no complaint on you viewing it your way. Just that others who don’t share your (or my) ideology, can’t be faulted for viewing the pieces differently. Historicity is often silly. Me, you, and other too, all see themselves as verified by history.
In other words, while I don’t know any group that does not use the Ramchal, I do know that there is a difference of opinion as to why he was rejected and then accepted. Similarly, the different sides [of what you see as the cardinal three lines (Chabad, Zionism, Modernity.)] of orthodoxy – although you see only one of them as clearly supported by the historical system – are all founded on the same historical realities. They can’t be forced into one side of the issue without blunt force resulting in trauma to the historical record.