Uh, no. If He has to come down daily upon the altar He is being sacrificed again and again and again, etc.
He has already made the sacrifice. He doesn't do it again and again....all due respect to Francis of Assisi.
Says who? You? That is not in fact what we believe; we believe his one sacrifice, which is continually being offered in the Holy of Holies in heaven (Hebrews 9), is made present to us in time and on earth.
BTW, repeating "it's symbolic" over and over again is not an argument.
Do you realize that no Christian denomination that can trace its history to the first millennium believes that communion is merely a symbol?