N. Korean problem is escalating. We have now come to the point that we can no longer avoid the reality that, as long as China lets its backdoor open and throws lifeline to N. Korea, nothing can be solved. So there is no choice but to make China held accountable in some way. The pressure on China is to be applied, starting with sanctions on Chinese business entities doing business with N. Korea.
China has been actively sabotaging any attempt to pressure N. Korea to change her way. China inserted herself into the problem again and again. So they have only themselves to blame if we widen the scope of pressure to include her.