No, I would think that if you bother read some of this stuff, you will understand the pros and cons of both and how things are likely to play out. It appears to me that you have not put in the basic effort into understanding the implications of various decisions.Sorry I don't consider the posts on this forum official Chinese or American policy. I have seen some of those discussions. But if you're starting with the premise that the US will turn this into a major war regardless of how the invasion of Taiwan goes, then that isn't very relevant to real life. The details of how this war would be fought today or in the next few years aren't even that important, the risk to China is just not worth it in any scenario.
The assumption that America will fight to the end is a good assumption if you want to discuss pacific war strategies. It's not a good assumption for discussing how to deal with the Taiwan issue. If you could point me to good evidence showing that if Taiwan falls very quickly and there aren't major riots afterwards, presenting the world with a fait accompli, the US will launch an attack anyway, I'd be grateful. Personally I believe that a very quick victory is the only "safe" way for China to achieve its goals
Going for a "quick victory" in Taiwan is a fine strategy. There are pros and cons. If PLA thinks there is a good chance that can keep America out, then that could be the approach they take. But if it does take this approach, it also needs to be aware of the possibility that US military based in Japan would fire the first shot and be ready to hit back hard. If US military starts to build up its air forces in Japan in the middle of your blockade of Taiwan, what do you do if you are PLA? I assume you have to draw some red lines with US government. You can desire a quick victory in Taiwan, but things can quickly get out of control and you are involved in a full blown war.