Deflation typically leads to high unemployment. High unemployment is the affect, not the cause. Deflation then often leads to more inflation (money printing).
I am enjoying the high stock market also, but your confusing the stock market with the real economy. The stock market is high due to predictions of future great earnings. Predictions aren't always accurate. Additionally, the run in the stock market as you inferred is fueled by AI. AI by definition is deflationary, and may lead to high unemployment - frictional, meaning not enough workers with the right skills.
Form your own opinions. Just giving you something to ponder.