I don't know why this is so hard for people to understand: consumers absolutely pay for the tariff.
It's difficult because when people get their bill for their imported widget it says

and does not say

The tariff is paid on goods coming into the country, not by the seller, but by the purchasers,
How DARE you contradict Donald John Trump {PBUH}!
who can opt to eat their profit margins, but capitalism being what it is, typically choose to pass at least some of that onto the consumer (i.e., you). The fun doesn't end there. Countries can themselves impose retaliatory tariffs if they believe that they are being tariffed unreasonably or excessively.
Yep. And tariffs are only "legally allowed" on ECONOMIC grounds.
That being said, it's important to realize that Trump/MAGA are using tariffs for other ends. Trump is using tariffs to force Mexico's hand on the border and he also wants to end the practice of Mexico being a subterfuge for Chinese-made goods that end up skirting US tariffs. He also wants to put pressure on Mexico to do something about the drug trade (Mexico may want the US to do something about the flow of weapons coming into the country). These are not entirely unreasonable asks, IMHO.
Indeed, they aren't - unfortunately not a one of them is an "economic" ground sufficient to permit "tariffs".
What Mr Trump is actually doing is imposing SANCTIONS on other countries because those other countries aren't doing what the US government tells them to do.
The American people could stop the flow of drugs overnight. All that the American people have to do is to stop buying the drugs that are "flowing". That, unfortunately inconvenience a few people and would cut into the profits that some real true patriotic Americans are making, so it isn't going to happen.
The American people could stop the flow of "illegals" overnight. All that the American people have to do is to stop employing, housing, feeding, or in any other manner supporting the "illegals". That, unfortunately inconvenience a few people and would cut into the profits that some real true patriotic Americans are making, so it isn't going to happen.
I think Biden honestly missed opportunities (or realized them too late) to put more pressure on Mexico to these ends.
Why not simply ban all Mexico-US traffic totally? That wouldn't stop Americans from going TO Mexico (they just couldn't travel FROM Mexico directly to the United States of America in order to return.
Along with that you could always designate "Mexico" as a "terrorist organization" and that would allow the creation of "free fire" zones along the US Mexican border.
And, then, taking a page out of the Israeli playbook, settlements could be established on the unused lands and Americans could move into those settlements (which would have to be protected from "terrorist attacks") thus extending the "settled zone" further and permitting the establishment of more "settlements" on other unused lands and Americans could move into those settlements (which would have to be protected from "terrorist attacks") thus extending the "settled zone" further and permitting the establishment of more "settlements" on other unused lands and Americans could move into those settlements (which would have to be protected from "terrorist attacks") thus extending the "settled zone" further and permitting the establishment of more "settlements" on other unused lands and Americans could move into those settlements (which would have to be protected from "terrorist attacks") thus extending the "settled zone" further and permitting the establishment of more "settlements" on other unused lands and ...