Yeah, the US is coasting on an impression of their might that used to exist but is now only a product of decades of Hollywood propaganda. Capitalism has enshittified their military the way it has everything else. A trillion dollar+ military budget that has never passed audit and pretty much isn't expected to is actually just a corruption budget.
That said, I do agree with the video that Carney is using the threat of Trump to push for things that people might push back against without that threat hanging overhead.