how did consciousness arise from no consciousness?
Consciousness isn't an on/off state. There are animals that have a sense of self, look up the psychology experiments done in this area. Some animals recognise that the creature in the mirror isn't another animal but is themselves reflected. That suggests a level of consciousness, although clearly not on the same level as homo sapiens.
Now while we may have no scientific proof that pleases scientists as to the exsistance of God, there are things in this world that at the very least make the idea of God more likely than an absurd idea like the teapot.
That is the point there is no empirical evidence for either so the teapot is no more absurd than the absurd idea of a god or gods. The only thing that makes the god concept more likely is the personal beliefs of theists which have the same empirical weight as the personal beliefs of flat earthers.
The most basic argument being that of cause and effect, how did consciousness arise from no consciousness? How could there be an effect greater than its cause? While this is not direct proof of god or any individual belief system I think simple things like this at least make the 'God concept' more likely than the giant teapot.
I would be intrigued to hear the basic argument although I fear your following sentence may have hindered you already. The teapot is merely an example to show that a lack of empirical evidence against something isn't proof that it exists. Your argument that the god concept is more likely than the teapot concept is purely based on a belief structure not on any kind of empirical evidence, if the christian religion were based on a worship of floating china teapots then the god concept would work just as well to show the lack of empirical evidence for teapot worship.