Basically, my assumption is that, at least in the US (and probably some other Western countries), the growth of Byzantine Catholicism is largely, if not predominantly, dependent upon Latin Catholics formally changing Churches to become Byzantine Catholics. There just doesn't seem to be enough natural growth of cradle Byzantines to ensure a guaranteed future in the coming decades.
It seems that a pariah's attendance and contributions can be bolstered by Latin Catholics who are parishioners but never actually change Churches, but at some point the numbers of canonical BCs need to justify continued support of Eparchies and parishes.
Does this seem like a fair assumption? Or am I way off here?