https://www.biblegateway.com/passage/?search=John+6%3A32-70&version=NIV
John 6:32-70
Read it and try to understand.
What, you don’t believe Jesus? He’s God.
We do believe what Jesus said. Why don't Catholics? Jesus said His words were spirit that the flesh profits nothing.
John 6:63 The Spirit gives life; the flesh counts for nothing. The words I have spoken to you--they are full of the Spirit and life.
Jesus would have been sinning by encouraging Jews to eat blood. Did the Jesus you believe in sin?