Earlier quoted context omitted.
The solution is to tax goods originating in places with inferior environmental (or labor, or human rights, or whatever you care about) standards to the degree that the difference in regulatory costs is moot.
Good luck telling voters that everything at Walmart now costs twice as much. Our economy and infrastructure is now dependent on cheap goods from China. Peoples perceived standards of living have gone up because we buy all this cheap garbage. What career politician is going to do this?
I'm not saying people would accept this. Most people are selfish, craven, and ignorant. What I am saying is it is immoral to require standards of production for your own citizens, but allow free trade with nations that lack such standards.