I do not understand the argument. Historically you were describing harvesting some resource (oil from the ground, sun from the sky, wind from the air, etc) and calculating your return. Carbon capture is about taking energy today and converting it into a different form of stored energy. Energy conversion is not lossless -you end up with less embodied energy than you started. Who cares? If you are taking overproduced solar and turning it into methane/ammonia, you can now “store sunlight” for night or seasonal grid backup in winter.

It comes down to economics. Electricity is less valuable than a combustible fuel in several contexts.