Human logic is always the downfall of cults.
"Our Father, hallowed be thy NAME". What is God's name? According to Exodus God's name is YHWH. Jesus' Hebrew name is God is with us. So, if I use your logic YHWY is actually Jesus' name, followed by a description of His earthly form. The only name that saves is "HHWY" is with us.
In heaven Jesus is a human body while the Father and the Holy Spirit are just that spirit. God caused the fullness of Himself to indwell flesh and walk among us, so in heaven the flesh called Jehoshua is glorified and animated by the Holy Spirit.
John 17:22-23
22 "And the glory which Thou hast given Me I have given to them; that they may be one, just as We are one; 23 I in them, and Thou in Me, that they may be perfected in unity, that the world may know that Thou didst send Me, and didst love them, even as Thou didst love Me. NAS
Christ in us the hope of glory is the Father in the Son who indwells us as believers therefore we are indwelled by the fulness of YHWH.
Now, Jesus commanded His disciples to baptize in the name of the Father, Son, and Holy Spirit after He equated love for Him with obedience to Him.
What you have failed to address is if Jesus is the name of the Trinity why the NT writers made the distinction between the Father, Son, and Holy Ghost while in the OT YHWH is rendered as "kurios", which is also used for the Messiah and the Holy Spirit.
You have not established "Jesus" is the name of the Trinity. God created the laws of science and has violated those laws many times in Scripture so to appeal to science to attempt to show that 3 personalities cannot fill the same space is ludicrous.
Eph 1:3-14
3 Blessed be the God and Father of our Lord Jesus Christ, who has blessed us with every spiritual blessing in the heavenly places in Christ, 4 just as He chose us in Him before the foundation of the world, that we should be holy and blameless before Him. In love 5 He predestined us to adoption as sons through Jesus Christ to Himself, according to the kind intention of His will, 6 to the praise of the glory of His grace, which He freely bestowed on us in the Beloved. 7 In Him we have redemption through His blood, the forgiveness of our trespasses, according to the riches of His grace, 8 which He lavished upon us. In all wisdom and insight 9 He made known to us the mystery of His will, according to His kind intention which He purposed in Him 10 with a view to an administration suitable to the fulness of the times, that is, the summing up of all things in Christ, things in the heavens and things upon the earth. In Him 11 also we have obtained an inheritance, having been predestined according to His purpose who works all things after the counsel of His will, 12 to the end that we who were the first to hope in Christ should be to the praise of His glory. 13 In Him, you also, after listening to the message of truth, the gospel of your salvation-- having also believed, you were sealed in Him with the Holy Spirit of promise, 14 who is given as a pledge of our inheritance, with a view to the redemption of God's own possession, to the praise of His glory. NAS