S.B., you misrepresent what Hebrews says about the Christ. In chapter one Paul, presumed to be the writer, describes Jesus as "the express image" of God's person. An image is not the person himself, but a reflection of that person. Paul here rephrases what he we find in Colossians 1:15. χαρακτὴρ ['image'] derives from minting coins. The image on a coin is not the person himself, but a representation of him. Jesus, in turn, isn't God, but so carefully mirrors him that in substance and personality he is exactly like his father.
So how is Jesus relationship to his father explained in Hebrews? The answer - a very exact answer - is found at Hebrews 5:7. Certainly you've read that, but you seem to have missed its import. The verse says: "In the days of his flesh, Jesus offered up prayers and supplications, with loud cries and tears, to him who was able to save him from death, and he was heard because of his reverence." Let's think that through. Jesus prayed. God has no need to petition himself. If Jesus was God, he remained so when human. The verse says he was heard. Some versions say he was heard because of his Godly fear, others because of his piety. The ERV I quoted above says reverence. What are these things. Are they not alternate words for 'worship'? Vines Expository Dictionary suggests that's the meaning here. And Vine though Trinitarian was honest enough to say so. So who did Jesus worship? Certainly not himself.
He prayed to be saved from death. God cannot die. Jesus was not a God-man. His death, a true death, was essential to ransom mankind from sin and death. That he died for us demonstrates that he was not Almighty God.
One who worships and prays to another is less than the one to whom they pray.
Hebrews continues: "Though he was Son [of God] by nature, yet He learned obedience from the things which He suffered having brought to the place of completeness." (Wuest) God isn't obedient to anyone. Jesus had to learn obedience to fulfil his role as savior. God need not learn anything. He already knows what there is to know. Jesus is not almighty God in any sense.
Now what is this "place of completeness" as K. Wuest has it? Wuest seem to avoid the word 'perfection' used in other translations, but he leaves us with the thought that Jesus had to be made complete in some way. God is complete in himself and cannot be otherwise. Robertson [Word Pictures, in locum cit.] says the Greek word τελειωθεὶς (Having been perfected) suggests a "completion of the process of training." Since when does Almighty God need training? Jesus is not almighty God.
Hebrews 5:10 continues by saying that Jesus was designated/appointed ( προσαγορευθεὶς) by God high priest. The Lesser is sent forth or appointed by the Greater. A servant is not greater than his master, but less. In every respect Paul has Jesus as less than and subservient to God. Jesus is not Almighty God.