Stock market increases are bad if they are being put to something unprofitable, whuch AI seems to be. Lagging behind Europe is bad because the US loses its competitive advantage, which can become a vicious cycle and kill the sector entirely. Low immigration causing a labor force squeeze is bad because critical industries like farming have crops rot on the field, causing food waste. Reduced demand because of AI is bad because it lowers employment, causing people to become destitute, desperate, and/or dead.
None of this is contradictory.