There's two parts here. Yes, China's doing it, and we shouldn't ignore it, and we need to condemn it and figure out how to respond. That's on one level.

On another level, though, any country that has more to gain by stealing than to lose by being stolen from is going to be tempted to steal. Given what human nature is, you'd better expect it to happen.

It's like how in domestic society, on one level we expect people to obey the law. But on another level we expect at least some people not to, which is why we have police.