Okay, so the linked article says Chinese infiltrators are in Idaho (and no doubt other places), so we should investigate this, Idaho is not a highly populated state, if there are a few dozen or even hundreds of Chinese “soldiers” present, they would presumably be staying together somewhere, would that be in a safe house or in an outdoor tent-based location (presumably in the forested areas to avoid obvious detection by the general public); they would also presumably be doing things as group activities.
Let’s look around in Idaho (or other states) and see what we can find out. Twenty or thirty Chinese males of that age would stand out in Idaho. Are they disguised as students? There would only be two or three places to check for that possibility.
If this is true (I have no idea), I would imagine their deployment would be within months, can’t visualize a plan to place them in America for five or ten years, for one thing, why bother, if this was a plan for 2030 they would move them in around 2028 or 2029. It’s a long time to wait several years under those conditions, and you have the risk of detection as well as mission fatigue (perhaps some would begin to think they were better off deserting and blending in with Americans, still not good, but no longer an active threat).
They wouldn't stand out much if they had a training encampment out in Idaho's vast desert wilderness where they were busy learning how to kill you.
You are obsessing excessively over this aspect of the border problem. The Chinese agent network has been in the US for decades. They don’t need to sneak them through that way, they have lots of money, and can do it by much more “sanitized” methods.
No need for tents. They have condos. They have the deep pockets of a superpower.
Note that Al Qaeda didnt use tents and stuff either. They too had money. They had a network of safehouses. The bearded guerillas in the hills trope isnt how this works, here.