This question is for Biblical Unitarians. If Jesus did not preexist His birth how do you explain Him being credited with creation?

Starting with John 1:3, "All things came into being by Him, and apart from Him nothing came into being that has come into being." Colossians 1:16, "For by or in Him all things were created, both in the heavens and on earth, visible and invisible, whether thrones or dominions or rulers or authorities--all things have been created by Him and for Him." Then there is Hebrews 1:10 where Jesus' own Father states, "And Thou, Lord, in the beginning didst lay the foundation of the earth, and the heavens are the works of Thy hands;" The writer of Hebrews is quoting Psalm 102:25, "Of old Thou didst found the earth; And the heavens are the work of Thy hands." This Psalm is the prayer of an afflicted man and at verse 24 the man says, "I say, "O my God, do not take me away in the midst of my days etc." Finally, Revelation 3:14, "And to the angel of the church in Laodicea write, The Amen the faithful and true Witness, the Beginning of the creation of God, say this;" In view of these Biblical facts about Jesus Christ before He was actually born please reconcile all of this with Isaiah 44:24, "Thus says the Lord, your Redeemer, and the one who formed you from the womb, I, the Lord, am the maker of all things, Stretching out the heavens BY MYSELF, And spreading out the earth ALL ALONE."