Supply chains and globalization should be very much rethought in this century.
Calling it slave labour is a great sound bite but glosses over the wide variety in working conditions "overseas", and the fact that trade has vastly improved conditions in many such "overseas" countries.
I have broadly the opposite view about supply chains and globalisation; the inter-reliance of countries and the trade in labour/goods/services leads to diplomacy, negotiation, communication, better understanding and ultimately a safer, better world. History has demonstrated this consistently if you take a long view.
The direction of "make everything in your own country, rely on no other country for anything" is the opposite to all of the above: less need for diplomacy, less leverage in negotiation, less communication, less understanding. That's a sad direction for the world to move in.
Is there any point at which we say "it is wrong to remove wealth from my country, put a fraction of it into working conditions unthinkable in my country, and let the owners of the means of production pocket the rest"? Shouldn't we mandate US-like living conditions and safety regulations if we are going to ethically export labor?
To make that mandate at the beginning is simply to decide not to export labour, since the trade can't happen if you apply those conditions from the outset. That's worse for everybody: your t-shirt costs more, and the worker in Cambodia or Bangladesh goes back to subsistence farming.
The present system of international trade has delivered a marked improvement in living conditions for labour-exporting countries. It's always worthwhile to talk about how to make further improvement happen faster, but mandates aren't the solution — to pretend economic realities don't exist doesn't make them go away.
Why don't you? Why is it unethical to save a penny for a stockholder yet it isn't unethical for you to save a penny by buying foreign produced goods? Sure, there are many specific brands unavailable domestically, but you can find some variation of everything you need locally.
Even if there are exceptions to that, I would bet you rarely choose to purchase domestic goods because they're too expensive. Supply chains operate at the maximum possible efficiency to save you as much money as possible. If you're willing to spend more to uphold your ideals, then do it. You already have the option.
Tim Cook famously said that Apple can’t move manufacturing to the US because the US does not have the industrial engineers needed to make and run those factories.
Ever see American Made on Netflix? Chinese industrial capacity, processes and standards are on some different level of refinement.
It's a fair point to make, but doesn't mean that OP shouldn't be doing their part by buying domestically if they really hate that some products get manufactured in another country. If everyone who complained about this issue decides to only buy domestically the domestic market would be much stronger.
The majority of the jobs you call slavery are indeed in horrible conditions, but still better paying than substistence farming, thus being one of the ways people can break the circle of poverty.
Exploitation needs to be weighed and reigned in, but rather than taking industry back home, it would be better to just make sure that workers in poor countries are also paid fair wages.
Exporting materials (steel), industrial capacity (famously, container ships), labor (Saudi Arabian oilfield workers and nurses in Germany among others), and mercenaries (Vietnam War).
Wages from which were taken by the government and invested (via national monopolies such as Samsung and Hyundai) into more infrastructure growth. Which slowly led to the Korea of today. Add in a dash of democratization and you get the softpower exporting, shipbuilding, chip fabbing regional power today.
It’s an interesting case study into I guess so-called “benevolent dictatorships” that managed to democratize itself (very very violently by the way), and then kept its nationalistic spirit going to weather through an IMF Credit Crisis to become what it is today.
