The Alpha and Omega in 1:11 is spurious and is only in the KJV and is either a copyist error or an outright interpolation. Are you a KJV-onlyist? Are you aware why it doesn't exist in the other versions?
I made at least a dozen claims in my post and you made one questionable response to only one 1 verse. How does that prove your case? It seems to be in additional versions than just the King James and it appears in all 18 major versions in other verses.
Webster's Bible Translation
Rev 1:11 Saying, I am Alpha and Omega, the first and the last: and, What thou seest, write in a book, and send it to the seven churches which are in Asia; to Ephesus, and to Smyrna, and to Pergamos, and to Thyatira, and to Sardis, and to Philadelphia, and to Laodicea
Young's Literal Translation
I am the Alpha and the Omega, the First and the Last;' and, 'What thou dost see, write in a scroll, and send to the seven assemblies that are in Asia; to Ephesus, and to Smyrna, and to Pergamos, and to Thyatira, and to Sardis, and to Philadelphia, and to Laodicea.
Revelation 1:11 which said: "Write on a scroll what you see and send it to the seven churches: to Ephesus, Smyrna, Pergamum, Thyatira, Sardis, Philadelphia and Laodicea."
This is ties in with Rev 1:8
New International Version (©1984)
"I am the Alpha and the Omega," says the Lord God, "who is, and who was, and who is to come, the Almighty."
New Living Translation (©2007)
"I am the Alpha and the Omega--the beginning and the end," says the Lord God. "I am the one who is, who always was, and who is still to come--the Almighty One."
English Standard Version (©2001)
I am the Alpha and the Omega, says the Lord God, who is and who was and who is to come, the Almighty.
New American Standard Bible (©1995)
"I am the Alpha and the Omega," says the Lord God, "who is and who was and who is to come, the Almighty."
King James Bible (Cambridge Ed.)
I am Alpha and Omega, the beginning and the ending, saith the Lord, which is, and which was, and which is to come, the Almighty.
Revelation 1:8 "I am the Alpha and the Omega," says the Lord God, "who is, and who was, and who is to come, the Almighty."
Who this is about is obvious from Rev 1:7
Rev 1:7
New International Version (©1984)
Look, he is coming with the clouds, and every eye will see him, even those who pierced him; and all the peoples of the earth will mourn because of him. So shall it be! Amen
Revelation 1:7 Look, he is coming with the clouds, and every eye will see him, even those who pierced him; and all the peoples of the earth will mourn because of him. So shall it be! Amen.
And before you bring up Rev 22:13, that is the Father speaking through Jesus's Angel in that verse.
Once again you have adopted a position that seems to be contrary to the concensus commentary view.
Matthew Henry's Concise Commentary
22:6-19 The Lord Jesus spake by the angel, solemnly confirming the contents of this book, particularly of this last vision. He is the Lord God faithful and true. Also by his messengers; the holy angels showed them to holy men of God. They are things that must shortly be done; Christ will come quickly, and put all things out of doubt.
Wesley's Notes
22:13 I am the Alpha and the Omega, the first and the last - Who exist from everlasting to everlasting. How clear, incontestable a proof, does our Lord here give of his divine glory!
Jamieson-Fausset-Brown Bible Commentary
13. I am Alpha-Greek, ". the Alpha and the Omega." A, B, Vulgate, Syriac, Origen, and Cyprian transpose thus, "the First and the Last, the Beginning and the End." Andreas supports English Version. Compare with these divine titles assumed here by the Lord Jesus, Re 1:8, 17; 21:6. At the winding up of the whole scheme of revelation He announces Himself as the One before whom and after whom there is no God.
Revelation 22:13 I am the Alpha and the Omega, the First and the Last, the Beginning and the End.