I’m not attacking your politics but in terms of economics some of this simply don’t make sense.
Tariffs increase the price of imported goods . They don’t reduce the price of competing domestic goods. So gas prices can’t come down because of tariffs. They could come down because of an increase in domestic or international supply - e.g. opening up new oil fields or seizing Venezuelan oil or just a dip in prices because OPEC open the taps. Either way, not tariff related.
Equally inflation can’t lead to more money in the hands of the consumer. Tax breaks obviously can, but then you need to identify which consumers benefit as it’s pretty hard to give all consumers a tax break that lands equally across different income deciles. And if you did it would stoke inflation.
If inflation is up, costs of goods overall can’t be down. You do say “many goods” but they must be a minority. By definition inflation at any level means prices are rising. Lower inflation just means at a slower rate than before. All of which is not to say that you necessarily want 0 inflation, but central banks generally aim for below 2%.
As I said, not questioning your politics, but it’s important to separate out the different factors at play.
Trump is clearly targeting sources of raw materials overseas. Rare earth minerals in Ukraine, oil in Venezuela, not sure precisely what in Greenland. American consumers will benefit from that. The question you have to ask is at what price for the rest of the world?