How can you say that Satan and his angels didn't have access before the birth of Jesus when this passage indicates that they all presented themselves before the Lord at that time, which was obviously in heaven and was obviously long ago and well before the birth of Jesus?
It's your imagination "The Sons Of God" were in heaven, I present myself before the Lord on this earth in prayer at God's footstool, I am a "Son Of God"
All believers throughout time, that are led by the Holy Spirit are "The Sons Of God"
We have arrived at the conclusion, your complete argument is built upon assumptions and imaginations
John 1:12KJV
12 But as many as received him, to them gave he power to become
the sons of God, even to them that believe on his name:
Romans 8:14KJV
14 For as many as are led by the Spirit of God, they are
the sons of God.