In 50 Years Will People Still Believe In God?

Yes, symbolically, not literally. The disciples did not literally drink His blood. If you take the time to read this it may be helpful. This comes from bible study.org:
The words of Jesus flowed with the inspiration of the Holy Spirit, bringing life to all whom God had chosen to reveal His truth. What He had said about eating His flesh and drinking His blood was never meant to be taken literally, as though He was advocating some form of cannibalism. He explained: ‘The flesh profits nothing’ (John 6:63). Dependence upon physical, bodily flesh would not help anyone to live forever—this is what we can reasonably infer from the context. It was not the cannibalistic eating of His literal flesh and blood that was going to provide life, but rather the imbibing of His words: ‘The words that I speak to you are spirit, and they are life,’ He declared (John 6:63, NKJ).
The life of the flesh is in the blood’ (Lev. 17:11, 14, NKJ). ‘The blood is the life’ (Deut. 12:23, NKJ). This is what we can read in the Old Testament. Jesus was as much as saying to those who listened, ‘Receive My life into yourself!’ He was and is the living Word of God, imbued with all the fullness of the Holy Spirit. To enter into life we must accept and act upon the words of Christ with living faith, repenting of sins and turning to God in order to receive forgiveness and the gift of the Holy Spirit, as Jesus promised (John 14:15-17; 26). ‘If anyone does not have the Spirit of Christ,’ Paul wrote, ‘he does not belong to Christ’ (Rom. 8:9) … ‘those who are led by the Spirit of God are sons of God’ (v14, NIV).

I am respectfully asking you not to respond, I do not feel like continuing to read your comments that are meant in a mean-spirited way and disrespectfully as well. I can't be any clearer than that.