Retail schlock. Our economy runs on it, is dependent on it, yet chokes on it.
Next time you're in any retail store look around and decide what percentage of the products you see are actually useful and what percentage is absolute and total crapola. Junque. Useless garbage destined for a landfill within a matter of months.
Of course, without all that the Chinese wouldn't have as much to do and when they get bored they start building other more problematic things, like aircraft carriers and annoyingly inconvenient islands. I'd normally say better to let their air be foul and their rivers catch on fire the way ours used to back in the good old days, but that's shortsighted. Like thinking that a fart will contain itself to only half of an elevator.