"You lot?" "Bubble"? I've already stated I have mixed views on tariffs. You keep saying "markets, markets, markets" but your knowledge is minimal.
It's not a good idea to craft government policy solely on what the markets say. They tried it in Japan and it failed.
Markets only care about short-term profits, not solving long-term issues such as infrastructure or healthcare which is what the president's job is. It's the same for a UK prime minister.
Markets don't care about the good of society. Do you remember 2008 when the lax rules boosted markets until the whole system almost collapsed? Millions lost their jobs.
The markets often overreact, are unreliable and have been wrong, driven by herd mentality, speculation and betting. Remember the dotcom bubble in 2000?
Why you have nothing to worry about is the S&P 500 spiked 18% when Trump cut taxes in 2017. Markets go up and down. Ultimately, most people aren't investors!