Because context matters, obviously. Global supply chains did not exist yet when the US industrialized.

The United States was a British colony where demand for raw supplies led to an organic development of railroads, coupled with technological transfer from businessmen in the UK hoping to capitalize on this nascent market.

Textile manufacturing was still a thing and we were in the very early innings of the global Industrial Revolution. The two world wars that destroyed Europe were also immensely helpful to the insulated US.

Why are you asking me questions for which there are easily available answers? Honestly, you might as well have asked an LLM.

Stop looking for evidence that only confirms your biases and start trying to disprove your hypothesis. Only when there's nothing left to disprove can you claim your hypothesis _may_ be right, though you can't ever know for sure.

By the way, immigrant labor was a massive force behind US industrialization so you're just totally lost at this point. Industrialization has always depended on interaction with rich economies. From capital flows to technology transfer, export markets, immigration, empire, or trade networks. No major industrial power developed in total isolation.