It is because it would be absurd. There are exceptions to that verse based on other verses, and logic. One of the verses would be Rom 9:11. This is where the teaching of the Church helps guide us.
"The most holy Trinity--One God, and not true God unless three divine Persons...The only authentic and true Revelation of this one God is transmitted in a trinitarian way by Sacred Tradition, Sacred Scripture, and Magisterial teaching, no one of which can subsist without the other two. One true God: Father, Son, and Holy Spirit. One true revelation of the one true God: through Sacred Tradition, Sacred Scripture, and Magisterial teaching." - Fr. Corapi
This is what the Church believes.
Interesting. Since it is about God’s redeeming love through the sacrifice of Jesus Christ, who was born without sin SPECIFICALLY for that purpose, the passage clearly refers to ALL of mankind (and womankind), in my religion. I am a Bible-believing Christian, and yes, I do believe *exactly* what the verse says—the Word of God (Jesus) says that all men and women are sinners and need saving. Not just a few scattered here and there, and no exceptions, but ALL. Moses and Elijah and Mary as well, in my beliefs. :-)