I should spend the time to assemble my sources to oppose yours once I get on a computer, but one thing I found telling was that China's current landing capability for infantry is in the low thousands whereas they would need in the high hundred thousands for minimal strategic goals, and this is the easy part in terms of shipbuilding. If they expect to invade opposed, they would need a whole fleet with anti naval and air capabilities which they don't have and does take decades to build.