> China is preparing to invade Taiwan in the coming decade
Propaganda. You can tell because China has never said that it intends to invade Taiwan, and you have no inside information. Propaganda is what makes you think you have inside information.
> the US is committing to defend the 23 million people there from invasion.
That's not propaganda. As far as I can tell, it's as much a declaration of war as if Xi said, on video, that the would commit the Chinese military to defend Florida if there were any US effort to prevent DeSantis sending immigrants out of Florida on buses.
China is not a submissive or weak country. I would honestly be surprised if they didn't start preparing to invade Taiwan (or as they would say, to send troops to Taiwan) ASAP after that interview.
edit: We can have WWIII, but it will be the US, BJP, and various poor authoritarian Eastern European states vs. everyone else. It'll be like WWII, except we can be the Axis this time. Hitler was as surprised as anyone that we weren't in the Axis last time.