Non-sequitur. Straw man. Red herring.
Burden of proof is on the candidate to prove natural born citizenship.
Dereliction of duty at all levels of the electoral system does not constitute surrender, nor does assertion of having to prove a negative comprise a valid counterpoint.
You may leave.
No, the burden of proof is on the person making the wild allegations. I can understand your unwillingness to prove your case, however, as you have absolutely NO proof. Your strawman that it’s Obama’s job to take time out of his schedule to respond to your ridiculous assertions may work on your fellow idiot conspiracy theorists, but it doesn’t work in the world of reality.