You may be right, but ostensibly, tariffs and other barriers are an attempt to make trade more fair, as the business conditions in China are significantly different and give various unfair advantages over jurisdictions that have higher labour standards, safety standards, environmental standards, and fewer subsidies.

So in that sense, we don't want to subsidize the oppression of workers who give up a decent living to save us some money, etc..

I realize that things like safety standards can change much faster than legislation.