The pro-export argument for selling NVIDIA chips to China is strategic: flooding their market with good-enough, affordable chips makes it uneconomical for their domestic industry to compete. This fosters dependency on the U.S. ecosystem and can slow their independent technological progress.

For companies like NVIDIA or Google, moving from TSMC to Intel or Samsung is not a simple supplier switch. It necessitates a complete redesign of the chip's architecture to fit the new foundry's technology. This complex and costly process can take one to two years, making it a last resort.

Arm's CEO argues the US has lost its 'muscle memory' for 24/7 manufacturing. The core issue is cultural: manufacturing isn't seen as a prestigious career, unlike in Taiwan where working for TSMC is highly esteemed. This cultural gap is a major hurdle for onshoring efforts.

While NVIDIA laments lost revenue from export controls, those same policies blocked its primary Chinese competitor, Huawei, from accessing TSMC's advanced manufacturing. This prevented Huawei from launching a competing 7nm GPU, preserving NVIDIA's market dominance in China.

TSMC's "pure-play foundry" model, where it only manufactures chips and doesn't design its own, builds deep trust. Customers like Apple and NVIDIA can share sensitive designs without fear of competition, unlike with rivals Intel and Samsung who have their own chip products.

China's refusal to buy NVIDIA's export-compliant H20 chips is a strategic decision, not just a reaction to lower quality. It stems from concerns about embedded backdoors (like remote shutdown) and growing confidence in domestic options like Huawei's Ascend chips, signaling a decisive push for a self-reliant tech stack.

Taiwan's TSMC dominates advanced chip manufacturing not only through technical excellence but also its business model. By acting as a pure-play foundry that doesn't compete with its clients (unlike Intel or Samsung), it fostered unique trust and partnerships, making it the central hub of the semiconductor ecosystem and a critical geopolitical asset.

The U.S. focus on building domestic fabrication plants (fabs) is misguided because fabs represent a lower value-added, highly capital-intensive part of the semiconductor value chain. National security and economic strategy would be better served by focusing on downstream activities like testing and packaging, which are closer to the end consumer.

Contrary to advocating for a full embargo, Nvidia CEO Jensen Huang argues that selling advanced chips to China is strategically advantageous for the US. His thesis is that creating technological dependency on American hardware is a more powerful long-term lever than allowing China to become self-sufficient with domestic champions.