Where is the difficulty in simply calling it the Roman Catholic Church or RCC?
I’ve explained that at great length on another thread. I have no interest in explaining it here.
Basically, using the label you’d like to demand of me is extremely offensive and UNBiblical, to me.
The funny part about this is that it isn't just the Roman Catholic Church when we're talking about this topic, the Eucharist. This doctrine impacts multiple, multiple groups within Christianity. To include, the Eastern-Rite Catholics (which are not Roman Catholic), the Greek Orthodox, the Russian Orthodox, the Assyrian Orthodox, the Coptic Church, the High-Church Anglicans, a major portion of the Lutherans, and others. (Those are the groups who believe that there is a literal change to the bread and wine)
When you consider the groups who consider there to be a literal, but spiritual only, change, the net is considerably wider.
(That's the reason I chose this topic rather than another, as parochialism aimed strictly at the Latin Rite Catholics actually hits a whole bunch of other folk)