I would say this is one of the great myths of globalization and that we should offers consumers plenty of competitive offers from the EU primarily.

How do you make companies competitive? If you just shower them with money, you often get the opposite result: they can't compete because they rely on subsidies and don't need to compete on the market.

If you then force (or "heavily encourage" with tariffs etc) other companies to "buy local", you're hurting those other companies by having them buy the product that's unable to compete.

The way to make a good company is to make people in other countries want to buy your stuff, not just the locals. See "How Asia Works".

So it does not matter if the good are made using slave labour working in inhumane conditions?

Nearly everyone also works for a living, or depends on someone who works for a living. Would you also argue on that same basis that strong labor protections, and high wages are better for nearly everyone?

If you intend to cite negative second and third order effects as a counterargument - have you considered whether or not any negative second and third order effects might be applicable to yours?