Theoretical... Pregnant wife dies suddenly. You perform c-section? Or no?

What an odd question for you to ask twice. Obviously yes stupid!!!! Have you heart or soul? My gosh. You must be a scientist with no conpassion.

Because it's theoretical, I'd say yes. If it's the only way to save the baby.

Logically, one would seek immediate medical care, and if the baby is still viable, a professional would perform the section.

Far too many variables. In the vast majority of cases, this would solve nothing and would simply subject a corpse to unnecessary mutilation.