When all circumstances of market society are played, tariffs are the status quo cop-out to avoid acting directly at the purchase point. Our economy thrives by keeping real costs of consumerism hidden from the buyer at their decision point. The logical response to overconsumption (climate change, pollution, resource depletion) in a market society is sales tax. The logical response to productivity increases via automation is UBI. Meanwhile, the primary path of corruption in our government has been through the income tax code itself (special interest line items, campaign bribes to get them, 'non'profit wealth think tanks corrupting information and distributing propaganda). Instead of tariffs, set up a VAT that includes all overhead of civilization (UBI, Health(not insurance), education, landfills, environment, science, transport, communication, etc). Real Cost Pricing.

We won't because it would kill the economy that is killing the planet. "We can't afford a better planet for our grandchildren", so we'll continue our suicidally competitive fanaticisms until the last war is fought with rocks over the last rock.