Jesus is the firstborn of all creation=All creation occurred at the beginning then God rested. Your religions twist this.
Um creation did not birth Christ
and all things were created by him and without him nothing was created
John 1:3 (KJV 1900) — 3 All things were made by him; and without him was not anything made that was made.
(NWT)Joh 1:3 All things came into existence through him, and apart from him not even one thing came into existence. What has come into existence
that makes it impossible he was a created thing
You just do not understand the term firstborn (prototokos)
Firstborn prototokos gr, sometimes used to denote preeminence or headship or even favoritism. it is sometimes transferred
Ex. 4:22 Then you shall say to Pharaoh, ‘Thus says the LORD, Israel is my firstborn son,
Psa. 89:27 And I will make him the firstborn,
the highest of the kings of the earth.
Descendants of Reuben
1Chr. 5:1 The sons of Reuben the firstborn of Israel (for he was the firstborn, but because he defiled his father’s couch, his birthright was given to the sons of Joseph the son of Israel, so that he could not be enrolled as the oldest son; 2 though Judah became strong among his brothers and a chief came from him, yet the birthright belonged to Joseph), 3 the sons of Reuben, the firstborn of Israel: Hanoch, Pallu, Hezron, and Carmi.
Gen. 41:50 Before the year of famine came, two sons were born to Joseph. Asenath, the daughter of Potiphera priest of On, bore them to him. 51 Joseph called the name of the firstborn Manasseh. “For,” he said, “God has made me forget all my hardship and all my father’s house.” 52 The name of the second he called Ephraim, “For God has made me fruitful in the land of my affliction.”
Jer. 31:9 With weeping they shall come,
and with pleas for mercy I will lead them back,
I will make them walk by brooks of water,
in a straight path in which they shall not stumble,
for I am a father to Israel,
and Ephraim is my firstborn.