To date, you are unable to create a living object as you define “living”. That fact implies you cannot create life. Since life exists and human cannot create life so there must be someone who created life. If you say we might be able to create life in future then its you belief and there is no proof or surety for that either.
For your question who made God, does polytheism make sense to you?
You being an atheist cannot distinguish between God or Bubba as with your logic, existence of any, imply creationism. So you should stay consistent and make your claim against creationism instead of doing rhetoric.
You are switching between your stances of denying existence of God and which concept about God is true. However, both are different subjects altogether.