I want to debate on only this part,because,other parts are simply fantasy.
you're assuming too much,because your assumption based on "China will Neutralize all threats before moving into Taiwan".I want to contradict this part.what do you expect,Taiwan will simply throw their missile carriers,Aircrafts and ships along with other equipment outside their hardened bunker just to destroy it by missiles??you should study Nato's bombing mission against Yugoslavia.they flew 38000 missions,yet only could destroy only 22 armored vehicles on ground.but how Yugoslav army protected their all resources against powerful NATO bombing,who had every kind of weapons to deal any threat??thats what China will face too.Hardened Bunkers and Underground Bunkers will store equipment,while others will use camo so that it'll be tough to destroy.thats how one fights against another.its sounds fine that thousands of missiles will crush enemy's defence,but see,even USA couldn't crush Iraq Army using such widespread bombing,even when they were virtually had no proper airforce to deal with.
you should study more on various kind of warfare scenarios than simply bragging about weapons.every country has similar kind of weapons system,its not something to brag about.but even they faced such overwhelming challenges,then you should ask "why",right???Amphibious Warfare isn't something which can be won "with Minimal Damage" when you're invading a powerful opponent and it's having Defender's advantage.you should study realistic estimates.I gave you one.even one optimist couldn't ask more than 60%(in reality,most country couldn't destroy 20% of enemy's arsenal,which generally gets protected using several means.Kosovo War was proof). enemy shore batteries,Naval Assests and Air Defence is destroyed before PLA moving for landing.but even then,this 40% arsenal can be used to deny space against invading forces,which will simply means a "Pyrrhic Condition" or "Failure".
come back to reality,study various battles that happened before,and then compare.remember Iwo Jima and Okinawa??think something like this,but more damages,as Japanese didn't have missiles to sink Ships back then,or USA would take resort of blockade.
First of all, Taiwan is not a powerful opponent, there are five maybe six powerful nations left, and Taiwan is not one of them. Do you even know the crisis they have going on in their army right now? Probably not, unless you follow their development, why would you.
Second, not every country has access to more or less the same weapon systems. India for example can't make artillery a WW2 relic. Don't show me those pictures again, get back to me when it's inducted. A picture only shows you know what an artillery is suppose to look like.
Third, granted, it would take some time, maybe a week or two, to actually take out enough of their arsenal to start any assault, but it would still fall way short of a month, and the Yugoslavia bombings, they were just trying to hide their gear, Taiwan would have to reveal their gear at some point if they want to use it. What good is a underground tank. They would have to move new gear if they have it to replace the destroyed ones, and that's an opportunity.
There could still be the odd piece that could cause damage, but I said minimal damage not no damage. Iwo Jima is a very different time. Don't compare then to now, not the same deal. By WW2 logic, US should have lost more in Desert Storm, but they didn't.
Fourth, We have complete control over Taiwan waters, we can attack from any direction, and just dash to the capital ASAP. We may not be able to destroy all their arsenal, but they would need to spread it out, and as we move more in land, they have to meet us at some point and that's where we make the move, without satellite's help, and communication jammings, they can't even tell where exactly our forces are quick enough.
You assumption that we can't destroy enough of their arsenal would be sound, if they don't have to meet us eventually, we would be landing, and the moment they poke their head out is the moment they die. Also, you are assuming Taiwan is this great military power, which it isn't.