If Jesus became sin for us in 2 Corinthians 5, does that mean He became a sinner?

Les explains that 2 Corinthians 5 says He became sin for us, but this does not mean He became a sinner per se. Instead, He took the sinner's place and became our substitute. Les compares this to Abraham offering Isaac: God provided a ram in the thicket, and the ram became the substitute, though the ram did not become Isaac. Likewise, when Christ went to the cross, He did not become a vile sinner, but He took upon Himself all the sins of the human race without becoming a sinner, "yet without sin." It was His substitutionary work that where you and I should have died, He took our place. He merely became our substitute, not any other person.