Do the Muslim countries care, No!
Muslim countries are 99% dictatorships, where the leadership doesn't even care about their own people.
Sad but that seems to be the case.
It’s not just cheap labor. China has all of cheap labor, lax environmental laws, cheap energy, a very manufacturing friendly government, a tech ecosystem, local expertise, and infrastructure. It’s literally the ideal place to manufacture, at least from an amoral economic perspective. Nobody can compete with China in manufacturing except in niche high skill areas.