Answer:
They're being replaced by machines.
Step-by-step explanation:
Prior to the technological inventions brought over by the industrial revolution, clothing related products relied on human crafts. But, the capacity of production of products made by humans are heavily depended on their energy and work hours.
The new machines in textile industry could product textile products much faster with lesser amount of resources. So, the cost of creating those products became much cheaper compared to paying individual salary.