Explain this extraction. This will be the failing point of your argument. Explain how value is taken. Where that added value comes from. Who is involved in this value extraction.
All of the costs are paid for by the product being sold, which pays for all the workers AND all the extra value from profit goes to Capitalist. That's how.
Not the point, point is that rewards are not proportional to amount of work done. With new tech productivity went up, profits went up, but workers rewards did not go up proportionally.
Technically the productivity cant go up proportionally since that increase in productivity requires greater investment in the equipment that increases productivity.
Which means, Capitalist got all the extra rewards, which is exactly why the rich got richer, driving prices up, while workers rewards went in reverse direction in respect to inflation.
You have a bit of a point in this though. Yes inequality had increased more. Much has changed though. Many jobs today didnt exist before, and many old jobs no longer do exist.