Serendipper,
Noted your points but the main one is the following;
I have argued extensively why “God MUST be absolutely perfect” all over this and other threads.
Here is a point, why God MUST be absolutely perfect.
The point is the initial drive of theism is a psychological issue and with crude reason drive theists to invent the idea of a God to soothes those psychological angst. The initial concepts of God were mostly anthropomorphic, but throughout history such flimsy [silly] anthropomorphic concepts has been questioned by rational people and even other theists.
When questioned, each group will correct their errors and shortfalls and come up with new idea of God to cover for the underlying psychological issues.
But as each new anthropomorphic or empirical concepts are raised to justify the existence of God, they are continually attacked/challenged by rational & critical thinkers and other theists as well.
This continual attack pushes the concept of God to the idea [not concept] of an ontological God, i.e. the absolutely perfect God or the absolutely Absolute which no other theists can challenge but exposes its back to the philosophical rationality.
A good example is Islam per the Quran is claiming Allah is THE GOD [absolutely perfect] while the God of Christianity as at present is a corrupted God. To counter the above the Christians [advanced theologians] has no choice but to claim their God as an ontological God, i.e. an absolutely perfect God.
Before the emergence of the idea of the ontological God, each theist will claim his God is more powerful than another’s. If one claim his God has power of X, then the next will claim his God is power of X+1 and it goes on to an infinite regression.
The ending of the infinite regression is the ontological God, i.e. a God than which no greater can exists. If every theist claim such a God then no theist can claim their God is greater than another.
As such the ontological God has to the default ultimately.
If anyone want to choose a lesser god that is inferior to another, I have no critical issue with that. In any case, to prove their lesser God is real, they will have to produce evidence to prove their lesser God is real.