Well, it is true now, but at the start of the Reformation there were priests who were still properly ordained (and could still confect the Eucharist). Over time, however, those priests died and the Old Rite was changed so that it was no longer a Catholic Rite. As a result, the New Rite became invalid and did not ordain true Catholic priests that can confect the Eucharist.
Didn’t bishops leave the Catholic Church as well, and couldn’t they ordain more priests & bishops (as Archbishop Lefebvre did)?
“Confect”? Do you mean that the priest himself brings about the consecration as if by magic? This would make your priests fundamentally different from ours. As I recall, one of the elements of the Liturgy the medieval Latin Church did away with was the epiklesis. Is that because Rome thought the HS had nothing to do with the sacrament?
BTW, while we can apparently receive the Eucharist at one of your liturgies (but don’t, properly), we do not return the gesture.