If unemployment continues to rise, and the one-time impact on prices of tariffs leads to self-reinforcing high inflation, we'll have
stagflation:
https://en.wikipedia.org/wiki/Stagflation
I sure hope not, because stagflation would be extremely unpleasant for everyone. Central banks like the Federal Reserve would be forced to raise interest rates, to put stress on businesses and consumers, so businesses find themselves unable to raise prices further and consumers find themselves unable to demand greater pay at work.
Raising rates to put stress on businesses and consumers is the only method known to work for ending self-reinforcing high inflation. It's what Paul Volcker did at the Federal Reserve in response to the stagflation that started in the early 1970's in the US and other countries, after OPEC raised oil prices. Volcker raised the federal funds rate in fits and starts to a high of 20% in 1981:
https://en.wikipedia.org/wiki/Paul_Volcker#Chairman_of_the_F...
It worked. Volcker's actions are widely credited with ending self-reinforcing high inflation. His actions also triggered a recession.
Stagflation itself triggered a stock market crash in 1973-1974. It took over 20 years, until 1993, for the US stock market to recover:
https://en.wikipedia.org/wiki/1973%E2%80%931974_stock_market...
Like I said, it would be extremely unpleasant, for everyone. I hope we don't end up with stagflation.