To be clear: carbon capture like this is a tiny and expensive part of what needs doing over the next few years
It’s getting a lot of support and publicity in large part because it’s backed by the oil industry, which is trying to create social permission for continued extraction and burning on a much larger scale than the removal.
It is like optimizing recuperation in a car. You are still driving around in a car, the basic issue is still there. There a far better solutions. That is not a “what if” question.