China is not alone in this, just more present in the HN-relevant IT/tech sector. But clothing in southeast asia, mining in africa and south america, logistics/trucking in eastern europe are relevant examples from other regions and industries.
I don't intend to disperse responsibility here or distract, quite the opposite: One of the main reasons the aforementioned abuses can continue is that "the civilized west" systematically ignores those problems on all levels. There are some EU regulations coming up to improve this situation, but we'll have to wait and see on those...