Why would the Lord Jesus be called the "everlasting Father" if He is not the Father? Your answer makes no sense.
And what do you say about the words of the Lord Jesus here?:
"Jesus saith unto him, Have I been so long time with you, and yet hast thou not known me, Philip? he that hath seen me hath seen the Father; and how sayest thou then, Shew us the Father?" (Jn.14:9).
Of course the Lord Jesus is speaking about Jehovah the Potter when He referred to the Father:
"But now, O LORD, thou art our father; we are the clay, and thou our potter; and we all are the work of thy hand" (Isa.64:8).
The Lord Jesus certainly cannot be excluded from being the "Potter" since
"by Him were all things created" (Col.1:16). That explains why we read the following about the Lord Jesus:
"For unto us a child is born, unto us a son is given: and the government shall be upon his shoulder: and his name shall be called Wonderful, Counsellor, The mighty God, The everlasting Father, The Prince of Peace" (Isa.9:6).
What does your Bible say at Isaiah 9:6?
No, the pronoun "us" has to be referring to God and no one else:
"And God said, Let us make man in our image, after our likeness...So God created man in his own image, in the image of God created he him; male and female created he them" (Gen.1:26-27).
In verse 26 it is the "us" who made man and in verse 27 it is God that made man. Therefore, the word "us" has to be referring to God. So we can understand that God is a plurality.
You do not worship God by calling someone God who is not God. So when Thomas said these following words to the Lord Jesus he certainly believed that Jesus is God:
"And Thomas answered and said unto him, My Lord and my God" (Jn.20:28).
Of course those close to the Lord Jesus knew that He is God. After all, who else but God would dare say what the Lord Jesus said here?:
"That all men should honour the Son, even as they honour the Father. He that honoureth not the Son honoureth not the Father which hath sent him" (Jn.5:23).
If the Lord Jesus said that and He is not God then it would be blasphemy of the worse kind.
No, He was equal with God because only God can be the
Alpha and Omega, the beginning and the end. And that is exactly how the Lord Jesus described Himself (Rev.22:13).
Even while in heaven the Lord Jesus is described as "man":
"And said, Behold, I see the heavens opened, and the Son of man standing on the right hand of God" (Acts 7:56).
I answered why the Lord Jesus spoke of having a God. Since He was made man in every way then He necessarily had a God.