The first line of defense of any country is the formalized army. The nuclear deterrence is a different issue. The PLA is a formalized army and its main goal is to prevent a hostile force from gaining a physical foothold on home soil. If we examine the PLA in this context, minus the nuclear deterrence, then despite the numerical manpower advantage, precision strikes ala Desert Storm will deny the PLA leadership of command and control mechanisms.
The PLA realized this a long time ago...
ocp28
Essentially, the concept of "The People's War" is the doctrine of an army that conditioned itself as
ALREADY defeated and had no choice but grudgingly allow that hostile force access to home soil. But when the PLA had to deploy itself to foreign soil, in other words, became an expeditionary army like how formalized armies should have expeditionary forces as an option, the PLA had no guide on how deploy and wield its capabilities as befitting an expeditionary force.
And that sub-standard performance was not confined to Korea...
Set piece battles are when armies faces and assaults each other in massed formations on fairly predictable battlefields. When armies that conditioned themselves to insurgency tactics but deviate from that conditioning, they usually lose the battles. The NVA's supposedly 'military genius' Võ Nguyên Giáp never won a single set piece battle, from the days of fighting against the numerically inferior but better trained French, to when he fought the numerically inferior but better equipped Americans. When the PLA invaded Viet Nam, which for that brief conflict turned the PLA into an expeditionary army, the PLA performed as poorly at expeditionary tactics as when it was in Korea.
Note: The word 'expeditionary' here is not confined to units within an army whose main function is to be an 'expeditionary force', meaning rapidly deployable to foreign territories to conduct military operations as a prefix to the main forces, such as the US Marines or the US Army Ranger corps. An 'expeditionary army' is an army that is fully capable of deployment to anywhere outside home territories and one that contains distinct expeditionary units whose missions are to engage an enemy as far away from home territory as possible. The USAF is an expeditionary branch of the US military. So is the US Navy, which contains the dedicated expeditionary force US Marines Corps. In short, the entire US military is fully expeditionary.
The PLA is not an expeditionary army. Neither is the Swiss. But the smaller (than the PLA) British military is fully expeditionary.
Desert Storm was when the PLA realized it is severely outclassed by the US military and allies -- in terms of everything that mattered to a military. Today, to defeat a military is no longer confined to numerical destruction of an army but to include the severance of command from the rest of the army. Desert Storm showed the PLA its shortsightedness and worse -- the creativity of a potential adversary in combining the expeditionary capabilities typical of a formalized army with the mobility and flexibility typical of small units of insurgents operating independently from the main forces but towards the same goal. In other words, the US army is better than the PLA at tactics of "The People's War".
We can defeat the PLA and if there is a shooting fight we will defeat the PLA.