Simplify the following text for a Grade 14 native English-speaking person.
Original: Miaphysitism has often been considered by Chalcedonian Christians to be a form of monophysitism , but the Oriental Orthodox Churches themselves reject this characterization , Recently , the Eastern Orthodox and Roman Catholic Churches have begun to take this position more seriously .
Simplified: Historically , Chalcedonian Christians have considered Miaphysitism in general to be amenable to an orthodox interpretation , but they have nevertheless perceived the Miaphysitism of the non-Chalcedonians to be a form of Monophysitism . The Oriental Orthodox Churches themselves reject this characterization .