The Law of Consecration can work within a free market system, because it doesn’t control the economy. It easily works within it. It is a system of voluntary cooperation by which all are provided with a stewardship that they can improve upon and enjoy the fruits of their labors. Whatever you receive that is in excess of that which you need to improve your stewardship is consecrated to the Church again.
I have given you the short answer, which is all I have time for.