Author Patrick McGee argues that Apple's deep investment in China has become a real problem for the company.The Trump administration's push for Apple to move manufacturing to the US is deemed unfeasible for iPhones by McGee.Apple's dependence on China is deeply rooted due to the ecosystem created for manufacturing complex devices.Apple's ties with China have led to technology transfer, benefiting China's supply chains.Tim Cook faces challenges in extracting Apple from China due to business ties established over the years.Apple's claim of shifting some production to India and Vietnam to evade US tariffs is considered misleading by McGee.The workforce and infrastructure in China make it highly challenging for Apple to replicate production in the US.Despite Apple suggesting a shift of production to India and Vietnam, the supply chain remains heavily China-centric.Apple's profit margin and strategies in response to tariffs indicate a complex situation in restructuring production.Apple's business ties with China pose a challenge in light of the technology transfer occurring through manufacturing collaborations.