Until he was born as a human child, the man Jesus did not exist. He wasn't called "Jesus" in heaven before his incarnation. And since Jesus is the created son of God (Col 1:15; Rev 3:14) who might well be the archangel Michael, according to Paul, (1 Thess 4:15, 16)....we don't see what your problem is. The trinity is your belief, not ours.
Colossians 1:15 (ESV Strong's) 15 He is the image of the invisible God,
the firstborn of all creation.
Revelation 3:14 (ESV Strong's) 14 “And to the angel of the church in Laodicea write: ‘The words of the Amen, the faithful and true witness,
the beginning of God's creation.
The human "Jesus" was created by God, born of Mary, so Col 1:15 can't be about Him because He was not the first one ever born, it has to be about Michael. According to WT Michael was the only creation by God and Michael created all "other" things. So according to WT, Col 1:15 is about Michael, not Jesus.
According to WT, Michael was "the beginning of God's creation" not Jesus.
Colossians 1:15, 16 (NWT) 15 He is the image of the invisible God,
the firstborn of all creation; 16 because
by means of him all other things were created in the heavens and on the earth, the things visible and the things invisible, whether they are thrones or lordships or governments or authorities. All other things have been created through him and for him.
*** rs p. 218 Jesus Christ ***
Is Jesus Christ the same person as Michael the archangel?
The name of this Michael appears only five times in the Bible. The glorious spirit person who bears the name is referred to as “one of the chief princes,” “the great prince who has charge of your [Daniel’s] people,” and as “the archangel.” (Dan. 10:13; 12:1; Jude 9, RS) Michael means “Who Is Like God?” The name evidently designates Michael as the one who takes the lead in upholding Jehovah’s sovereignty and destroying God’s enemies.
At 1 Thessalonians 4:16 (RS), the command of Jesus Christ for the resurrection to begin is described as “the archangel’s call,” and Jude 9 says that the archangel is Michael. Would it be appropriate to liken Jesus’ commanding call to that of someone lesser in authority? Reasonably, then, the archangel Michael is Jesus Christ. (Interestingly, the expression “archangel” is never found in the plural in the Scriptures, thus implying that there is only one.)
Revelation 12:7-12 says that Michael and his angels would war against Satan and hurl him and his wicked angels out of heaven in connection with the conferring of kingly authority on Christ. Jesus is later depicted as leading the armies of heaven in war against the nations of the world. (Rev. 19:11-16) Is it not reasonable that Jesus would also be the one to take action against the one he described as “ruler of this world,” Satan the Devil? (John 12:31) Daniel 12:1 (RS) associates the ‘standing up of Michael’ to act with authority with “a time of trouble, such as never has been since there was a nation till that time.” That would certainly fit the experience of the nations when Christ as heavenly executioner takes action against them.
So the evidence indicates that the Son of God was known as Michael before he came to earth and is known also by that name since his return to heaven where he resides as the glorified spirit Son of God.
So "Jesus" isn't sitting at the Fathers right hand, Michael is. Jesus ceased to exist after He ascended to heaven, according to WT teaching.
John 17:4-5 (ESV Strong's) 4 I glorified you on earth, having accomplished the work that you gave me to do. 5 And now,
Father, glorify me in your own presence with the glory that I had with you before the world existed.
That is Michael speaking, not Jesus. Jesus didn't exist before the world existed, correct?