A tariff will at least necessitate US production which should necessitate employing people in the US and thus leading to even more competition for people. It should increase real wages, because it effectively reduces the labour supply.
To impose a tax only on imports. So, no, it's really not like a sales tax.
Look, Trump's idea is economically unwise for several reasons. But you're stretching past the breaking point in trying to find a way to drag it into this conversation.