US consumers will be paying the bulk of the tariffs through price increases. We do have representatives in Congress, they just weren't the ones imposing tariffs.
edit: as fun as silent down votes are, it would be interesting to hear where you might disagree
Now, did they do that with the approval of the voters? Ostensibly, yes, but in reality, it's not that clear-cut.
This would be more like if the Thirteen Colonies had MPs and those MPs still voted in favor of the Stamp Act, or they voted to delegate the power to tariff to someone with a severe personality disorder.
For a long time now I've been banging the drum of "don't put power in the president's hands", because the downside has always been very clear to me: even if you trust the guy in office today, doesn't mean you will want the next guy to have that power. But people just don't care. They are quite happy to have unilateral power exercised by one man, because they don't bother to think through the consequences of such things.
edit: typo
Now gather a huge group of friends who are willing to fight for this cause (and for whose this cause is so important that they can accept ending in jail or even worse).