Is an Intelligent Designer Necessary?

It appears to be impossible to prove or disprove the existence of an ultimate "intelligent designer".Is it possible to demonstrate that intelligent design is not necessary?Most arguments FOR the existence of an"intellegent designer" for the universe, try to explain that it is impossible for "something" to come from nothing.Is it possible that total nothingness is exactly equivalent to a perfect, and infinite, symmetry? Therefore, there "must" be a definite probability, that this infinite symmetry will spontaneously start symmetry breaking .[total nothingness]--->[spontanious symmetry breaking]--->[laws of physics]