Ugh, that was the most difficult 'news piece' I've ever listened to. Repeating the same thing over and over again without even an attempt at providing evidence. India has good reason to report that China are the bad guys, just look at the shenanigans going on at Ladakh.
The Taiwanese article cites 'a PLA video', but doesn't link to the video and doesn't provide context for that video. How old is it? Is it a propaganda video where people are talking about what they would do for their country? (EVERY military has a video floating around like that!). Now I'm not a China-supporter. Far from it rofl. But if you look at the critical evidence, there's nothing there that indicates that China is up to anything other than it's standard blatantly obvious psyops shenanigans if the whole letter writing thing is true.
And the final nail in the coffin is that there's plenty in the news telling us that there's a a pretty big PLA exercise going on at the moment. Even if they were asked to write goodbye videos, it's very probable that it's literally just an attempt to wind people up and get them worried that China is going to attack when you combine it with the ex movements. I wouldn't hold my breath in the current climate.
I've said it before and I'll say it again... Because I like the sound of my own voice probably hahahhaa. I honestly believe that if a conflict starts, it won't be China that starts it. As a culture they're pathologically adverse to shame. The shame of being the aggressor is not in their nature. Aggressive DEFENCE is a whole different kettle of pew-pew. But to start a war is not their way because the shame of all the innocent deaths would be on them. I'm pretty convinced that if there's a conflict they'll wait for someone else to cock up so that they can point the finger at someone else and say "SEE! It wasn't us that started this! They did xyz and we HAD to respond. We had no choice!". Well. That's my guess anyway.
I guess history is on your side mate! The Korean War is a good example, MacArthur went all the way up to the Chinese Border and then got his arse handed back to him by the Chinese, they only went full retard when their border was being threatened!