Do you understand that it "all just happened spontaneously" is precisely the argument you are forwarding in connection with your gods?What's laughable is your brainwashed understanding that biological machines are somehow on a different scientific level than other machines. Your Darwinist religion drives this thought, because it is devoid of all logic. Your lense is skewed because you are trying to fit the scientific evidence to your belief that it "all just happened spontaneously".
No we don't rule out the designer because he can't be put to the test ,studied,or observed.
We don't make things up that go against natural laws of nature.
The designer isn't ruled out by science, but since He can't be tested, He has no place in the study of evolution. It's not required. Even if God did breath in the initial spark, that doesn't effect the study or theories of how evolution proceded in the slightest.