First article: "China's economy expanded in the third quarter at the slowest pace", second article, "Growth in the world’s second-largest economy is slowing "
These quotes do not support the claim of "on the decline", they show the rate at which the economy is growing is not as fast as before, but still at perfectly respectable rates:
"It has been a grim month for the Chinese economy: A slew of recent data has revealed the world’s second-largest economy is slowing faster than expected, causing analysts to predict it will miss its relatively modest 5 percent growth target this year."
"This week’s disappointing Chinese GDP (gross domestic product) numbers showed that Chinese economic growth has slowed to 4.75 percent from the very rapid annual economic growth rate of seven to eight percent during the 2010s"
"China’s economy is performing dreadfully. The post-pandemic bounce was far smaller and briefer than the Chinese government had anticipated. Despite recording a respectable, if diminished, official growth rate of 5.2 percent in 2023, the reality may have been much slower, with some analysts estimating growth was no more than 1-2 percent."
"China’s economy grew 0.7 percent in the second quarter over the previous three months, below the expectations of most economists. When projected out for the entire year, the economy grew at an annual rate of about 2.8 percent — a little less than half the rate in the first three months of this year."
The USA, by comparison, was 2.5% in 2023.
If China is "in decline" from these numbers, so is the USA.
https://www.bbc.com/news/articles/crr54x00857o
https://www.washingtonpost.com/world/2024/09/20/chinese-econ...
https://www.gisreportsonline.com/r/china-deflation/
https://www.aei.org/economics/chinas-economy-is-in-deep-trou...
https://foreignpolicy.com/2024/06/03/xi-china-economic-decli...
https://www.nytimes.com/2024/07/14/business/chinas-gdp-q2.ht...