ittuttut,
Go back and study. Paul rebuked the Corinthian church because they were not gathering for the Lord's supper. They were gathering for their own meals, not in honor of Christ.
1 Corinthians 11:20-22 When ye come together therefore into one place, this is not to eat the Lord's supper. For in eating every one taketh before other his own supper: and one is hungry, and another is drunken. What? have ye not houses to eat and to drink in? or despise ye the church of God, and shame them that have not? What shall I say to you? shall I praise you in this? I praise you not.
They had a pretense of partaking of the Lord's supper when in fact, they were having a common meal that Paul rebukes them for, not drunkenness.
Also, since that word 'drunken in verse 21 can also mean 'drink well', it does not necessarily mean they were drinking an intoxicating drink. Only drinking more than theiy needed. Just as they were being greedy and selfish with their food, so were they greedy and selfish with the juice. Their greed for the drink and food caused some to go without.
Jesus was drinking 'the fruit of the vine'. Nowhere did He call it an alcoholic beverage, and you are slandering His character by saying it was alcohol. The Prince of Peace, the King of kings would not have drank alcoholic beverage, for it was forbidden. And Christ did not come to destroy the law, but to fulfill it. The law forbade princes and kings to drink alcoholic beverage lest it pervert their judgment. Christ fulfilled that part of the law. He did not drink alcoholic beverage.