“the US technology industry would not survive without top foreign born talent.”
Yes, it would. Name some inventions that drive any technology industry that were created by a foreigner. I can name countless inventions by Americans.
By foreigner I take it you mean India born since we are in the context of H1B. Otherwise plenty of inventions by European born "foreigners". It's easy. I asked one of the AI chatbots
1. USB. Yes, the ubiquitous USB without which modern life wouldn't continue -- Ajay Bhatt.
2. Fiber Optics (no modern high speed internet without fiber optics) - Narinder Singh Kapany
3. Pentium Processor - Vinod Dham.
4. Bose corporation (many patented tech) - Amar Bose
5. Semiconductor manufacturing - Gurtej Sandhu.
6. DSP (Digital Signal Processing) - Anil K Jain (significant contributor) If you want more just ask a chatbot.