They have little to no airlift or sealift capability that would survive the first 5 minutes of a shooting war.
Which is what I am very aware of, and why I laugh so hard.
They have 81 of their largest transport aircraft, equivalent roughly to a US C-130. The US had over twice that many C-130's to support Desert Storm. Flying over 46,000 sorties. In addition to over 8,000 sorties of the C-141 and over 5,000 sorties for the C-5. Neither of which does China have anything even close to in capability.
Most civilians have absolutely no concept of the huge logistical demands of moving and supporting a military force in the field. Just to move a single Infantry Battalion takes two Boeing 747 liners, and that is just for them and their personal effects. No weapons beyond their individual M-16 rifles or M-249 machine guns. And they only move that way in secure areas, not into hostile territory because that aircraft has absolutely no defense against enemy fire.
Want to move a Regiment? Just the personnel would need around ten 747s, and once again flying into a secure landing area. And a butt load more cargo aircraft to bring all of their equipment. Then you got to bring them food, water, medical supplies, tents, medical support, transportation, fuel, munitions, I can go on and on and on here. I have been part of the planning of moving Infantry Battalions, Air Defense Battalions, and Field Hospitals. It is no joke a massive undertaking.
Twice I was part of organizing and running convoys from Fort Bliss (El Paso) to Yuma. Over 500 miles in 2 days, each Battalion occupied over a mile of freeway with their equipment. And there were four battalions on the move for those exercises (and add another mile for the Brigade Command and Support, Field Medical Unit, Water Purification Unit, Security Unit, and more as we simulated the Infantry, Armor, and Artillery we would have used in a real war). Then constant shipments of fuel, food, and water once we got there. Even a large Brigade sized operation in the field on most US bases is a massive undertaking, requiring months of staging and preparing for the increased logistical demands.
And even a Battalion sized organization on the move (fully motorized) easily is made up of around 70-100 vehicles. Want to land on a hostile shore, and set up your air defenses to counter enemy counterattack? Well, you had better bring all of those vehicles and equipment with you. Want a Field Hospital big enough to support a Regiment-Brigade? Same footprint more or less. What used to be known as a MASH is now called a CASH, and that is the requirements for one to move into the field and keep itself running.