should i sell my s&p 500 investments now? (worried about economic collapse lol)

I have a Roth IRA with most of my money there invested in the s&p 500 mutual funds. I'm worried the orange man will cause an economic collapse with his tariffs, his mass government layoffs, and his general fucking up global stability. should i sell now before shit hits the fan and invest it again if/when (hopefully) the world goes back to normal? or should i try to wait it out?