I'm all for non-punitive tariffs as a replacement for the income tax if the income tax is truly abolished. However, that would require a constitutional amendment. I don't see it happening.
Tariffs designed to encourage unrelated behavior...I'm not sold on and it really amounts to a tax increase. It's just more hidden in the cost of items.
Simply trading lower income taxes for tariffs is likely to hurt lower income people more. I suppose you could say the same about replacing the income tax altogether with tariffs too, depending on what items had tariffs applied.
Something to consider would be to replace all corporate taxes with tariffs. Both increase the cost of goods but better to increase the cost of imported goods than domestic ones.
As always the lower income households will affect the most because they will have to buy the same things more expensive so they will either stop buying or have less money to spend elsewhere and that means less spending in general . I can understand when there are target tariffs in specific products or sectors that are vital but historically tariffs in general won’t work .