That balloon was not China's only spy vehicle, as the attached "Space Force" article shows...

...and the Biden admin wisely waited for the balloon package to be over water where we could capture it, largely undamaged and get maximum insight into their technology, communications, etc...a virtual gift.

Your Vietnam experience would sour anyone, so you're justified in being jaundiced about what happened. Nonetheless, we do have some very dedicated and talented people on watch...and not all of them are White, Straight and Christian ;-)

Link: https://spacenews.com/u-s-space-force-wary-of-chinas-expanding-spy-satellite-fleet/