Yeah by the background it looks like its the demonstration model for the factory that makes them.
That and the speed of the operator, and the no use of personal protection at all...
The factory I read about in China that scraps just Christmas decoration lights, its in a area that has a lot of factory's doing the exact same thing.
The reason why is because 'they can sell the plastic chop to shoe manufacturers'.
And if that's the reason the profit margin must be quite small.
But having a small setup at home could be worth doing as it upgrades low price scrap up to Copper #2 (or #1?)prices.
Like this guys
https://youtu.be/fkc0NAxPYic car wiring looms.
Making the chopper seems to be the hardest part with machining having to be done. I have a small electric hand planer for wood, I wonder if that's a good start?