Factory production is not even close to realistic for a single man or small group operation. It is as if you are saying Atmomixani and Kamry have the same number of people working for them.
Lets see,
Shenzhen Kamry Technology CO. Ltd | WorldofTrade.com
I assure you sir CNC equipment makes the clones at Kamry, not some 100-250 trained machinists.
If you look up even just a little about how long it takes to machine a bit of steel like 304 or 316, you will realize just how slow the process is even with full automation on a single machine.
When you multiply the number of machines your output will also increase, especially if you can do so in range of hundreds of machines.
It takes Ford under 6 hours to build an entire car, therefore everyone should be able to do the same; is failed logic.
Maurice