Just to play devil's advocate a bit...
We know from history classes how tariff wars hastened/worsened the great depression worldwide less than a century ago; And I think many would agree that DT is mostly a figurehead tool for the GOP and its backing industrial complex to get what they want (power, money, access to resources).
So lets consider the possibility that these tariffs are a money play for the elite.
Announce tariffs = stock markets drop -> elite's buy stock.
Announce roll-backs on tariffs = stock markets rebound -> elite's make a of money.
So maybe... there is a chance most of this tariff nonsense is temporary...
I have read this perspective, and I believe that there are people tracking activities surrounding the on-off-on-off tariffs, chomping on the bit to discover that this is true. I believe that this is one benefit of short term gains for select individuals.
Another consideration is that around 18% of our economy is based on foreign investors. News feeds are only reporting some of the spin-off effects of all of the policy changes and Tariffs. A lot of foreign investment money is quickly being removed from our country. If most of the foreign investors bail, this alone will set the stage for a contraction of our economy.
There is also a rapid realignment of our friends and ally countries, where they are pulling away from the USA. This shift could/will permanently damage our ability to compete in the rest of the global economy. (Think of Japan and South Korea aligning with China. - Big win for China.) Europe is banding together along with Canada and Mexico. As a combined entity, they really don't need the USA to play with.
This means that our current path leads to us becoming an isolationist country. In the not to distant future, we may only have Russia, Hungary and a few other countries to play with. (What kind of government works best for isolationists? definitely not a democracy)
All of the symptoms being displayed is that the USA is an empire in decay.