1969 was truly the pinnacle of US aerospace industry - Concord, Boeing 747 and Apollo 11 all happened during this year.
Concorde wasn't the US aerospace industry.
This is such an absurd statement. What US aerospace has created post 1969 is nothing short of remarkable in comparison. (And we can be proud of the Apollo era too.)
The Concorde wasn't made in the US. It was a UK/France partnership.