Blood of Jesus was offered to God, not for the people to drink. Jesus on the Cross never asked anyone to suck His Blood dripping down to the earth.
Roman Catholic and you are confessing that they are cursed by God because the Bible says this:
Leviticus 17
14 For it is the life of all flesh; the blood of it is for the life thereof: therefore I said unto the children of Israel, Ye shall eat the blood of no manner of flesh: for the life of all flesh is the blood thereof: whosoever eateth it shall be cut off.
Roman Catholic confess they are cursed to be cut off from the people of God.
RCC confess that they are going to the Purgatory Inferno which is virtually the Hell without knowing when they can get out of there.
But the truly Born Again Christian Believers go to the Heaven via Paradise as the Robber on the Cross who went to the Paradise along with Jesus, without going to the Purgatory.
Luke 23:
42 And he said unto Jesus, Lord, remember me when thou comest into thy kingdom.
43 And Jesus said unto him, Verily I say unto thee, Today shalt thou be with me in paradise.
John 6 talks about the Bread and Blood indicating the Body and the Blood of Jesus.
This teaching is talking about the Spirit thru the Words of God.
RCC misunderstand the words of Jesus as the Jews misunderstood in His time.
Eliyahu
Jesus problem with people in John 6 was not that they didn’t understand, it was that they didn’t believe.
The Apostles didn’t understand, but they believed anyway, and this is what we call faith.
The Apostles didn’t then know how Jesus flesh and blood would become real food and real drink until the Last Supper when Jesus consecrated the bread and wine into his Body and Blood.
It divided His follows then and divides his followers now.
Catholics believe Jesus words, that His flesh is real food and blood real drink.
We don’t know how he transforms bread and wine into His Body and Blood, we only believe it because Jesus said it.
We don’t know how He transformed water into wine, but we believe it.
We don’t know how He walked on water, healed the sick or raised the dead, but we believe it.
It would be easy to believe these things if they were only symbolic, but as it is, it requires a great deal of Faith from us.
What Jesus said and did was true, from our perspective. There’s no one else to go to, Jesus has the words of everlasting Life.