Taiwan is far from armed to the teeth. Taiwanese F-16 are no match for J-10C let alone J-20.
The J-20 is relatively unknown at this time, and is available in tiny quantities. We can talk about it when more information becomes available. I'm not sure why you think Taiwanese F-16Vs are no match for the J-10C. Remember, they're not only purchasing new ones (deliveries on those aren't slated to finish until 2026 iirc) but they're also upgrading their existing fleet, if I understood correctly, to the same standard. It's also my understanding that they carry a very modern AESA radar, and have access to top of the line BVR missiles. While China has indigenous BVR missiles, with comparable ranges, I can't help but wonder how they will compare. The US has extensive air-to-air combat experience, China not so much. The US has flown combat missions with 4.5th generation aircraft against 4th generation adversaries. That kind of experience could mean that even if the tech levels are comparable (and I'm far from sold that they are) the side with more knowledge and experience could very well design a better weapon system. It would be a mistake to dismiss top of the line F-16 variants.
Taiwanese Kidd class are no match for Type 052D let alone Type 055.
This simply isn't how battles are fought. China would have to plan and execute a very complex multi-domain operation, and this is likely where the failures would come. Superior, on paper, ships and planes, still need to coordinate, communicate, and execute a large scale joint operation. And remember, the Kidd class isn't alone. Taiwan has a large fleet of frigates, and has recently purchased a sizable force of coastal AShMs. None of this is likely to surrender easily, and landing ships and troop transports are highly vulnerable to a battery or btln of coastal missile system. This means some of the warships have to spend time protecting the transports, while the rest have to be ready to deal with the Taiwanese Navy.
Taiwanese subs are not match for Chinese Type 636 Kilos.
It's not Taiwanese subs that Chinese Kilos would have to worry about but Taiwanese ASW, represented by a fleet of helos and capable P-3Cs. This means diverting combat aircraft to keeping enemy MPAs away from your submarines.
Not to mention China has KJ-2000 strategic AWACs
Both sides have AEW in comparable(~ish) quantities (can't seem to figure out how many of their smaller AEW they have). The KJ-2000 is larger (not sure what "strategic AWACS" refers to) but it's also China's first indigenous AEW design, with no previous experience. Taiwan has a mature system (E-2Ks) from the US.
and H-6K strategic bombers.
I'm not sure what the significance of this is. The advantage of larger bombers over tactical aircraft comes in combat range and payload, but given the scale of the conflict, Chinese tactical aircraft should be able to do the job. I'm sure the H-6K would get used for missile strikes, but it's hardly a decisive advantage.
Taiwan is only 180 km from mainland China. PL-15 has more range than that at 200 km.
How does the performance of a long range anti-air missile decline towards the margins of its engagement envelope? ;-)
Taiwan would lose control of its airspace and coastal waters within a couple of days even if they decide to fight. It is far more lop sided compared to Argentina and Britain in the 1982 war in which Argentina had rather comparable equipment such as aircraft carrier, fighter jets.
I don't know enough about the Falklands war to compare, but I don't see any evidence to confidently claim that the Taiwanese military would surrender in the face of an ultimatum, or that it would be a "short battle" (whatever that even means, you apparently think a 1.5 month-long campaign with thousands dead, and iirc ~150K forces involved from the Azeri side qualifies as a short battle, so by that standard maybe it would be a short battle?) I see a best case scenario for the PRC would involve large casualties taken, and huge resources expended ending in an eventual, quite bloody, victory. And while we're at it, how good is PLAN mine-sweeping capability? "Small" factors like that may turn out to play a far bigger role then how many Type 55s China has available.