The classic reference is Steve Blank's "Secret History of Silicon Valley": https://www.youtube.com/watch?v=ZTC_RxWN_xo
SpaceX is the direct result of a South African who studied in Canada and came to the US because that's what he wanted to do. The idea that the US "military ecosystem" could claim "direct" responsibility for what Elon has achieved is an insult to him.
Why do you think Elon Musk chose to start SpaceX in the US?
Should we ask the founder in South Africa who was able to recruit the right technical talent and hold a majority share of a private rocket/satellite company while remaining in South Africa?
Exactly my point. If you want to start a company as ambitious as SpaceX, the US is the only place to do it. If you do it somewhere else, you incur serious risk of getting a large chunk of the company seized/taxed, even if you are successful.