Protectionism is not the answer, and that's why Obama told Warren to keep her trap shut.
We actively cripple our lower-middle class with high taxes and abundant lack of public services/benefits. We can't make China the whipping boy for the malfeasance of American liberal bureaucrats.
Cut taxes or reform our broken entitlement system to "spread the wealth around" (the real meaning of the phrase). Democrats who stand in the way need to be trampled under foot, and whether they like it or not, Democrats will have to broker deals and compromises with Americans who'd rather have a tax rebate than an inferior handout (based upon previous performance by entitlement administrators).
China is supposed to be a wake up call that international commercial competition has arrived. This is not an opportunity to start another great depression by stunting global trade.