Godbeliever,
The passage at Isaiah 61/Luke 4 speaks of features of the anointing that would be associated with the imminent final eschatological divine intrusion into human affairs. It was not an appointing to become the leader of the religious community or of the royal household. The anointing of people such as David or of the High priest are irrelevant.
Eschatology speaks in terms of release from oppression, restoration of sight, and so forth. Jesus' resurrection was a sign that the final eschatological moment had arrived. His miracles were signs of the Last Days. Jesus had seen the evil spirits evicted from heaven.
It's all mystical and the roles of Pesher and of Midrash are pertinent here. The context of Isaiah 61 is the neo-Babylonian captivity and exile, and it was addressing that situation. Analyse the passage solely in its original context
Psalm 2 is saying that the Israelite nation was already God's Son and that their king was enthroned. Once more the role of Pesher comes into play. Read it literally in its own immediate context, for that was how it was written.
Doug