The amount of colbalt used in that process is extremely small. The amount of colbalt in one electric car, will refine enough fuel to drive to Mars or Jupiter give or take depending on what electric car it is.
It’s really not that straightforward at all.
The cobalt in fuel production is used as a catalyst and is consumed. Cobalt from a battery can be recovered.
There is more cobalt in the battery of the phone I am holding to type this response than there is in the battery in my electric car (which for the avoidance of doubt, has zero cobalt in it).
The cobalt argument is just that and usually lacks substance. The reality is, the reputable car companies don’t source their cobalt from child mines. I’d be more concerned about buying thing with batteries where there is a lack of supply chain transparency/due diligence.