That's true, but what are the alternatives? Personally I do have alternative investments (crypto, random held stocks) but it's because it's fun money - if it goes to zero, I'm not going to lose the house.
If it's the first time it's failing then there's really nothing anyone can do to prepare for it, and I certainly wouldn't recommend laypeople to try to time the market.
Alternatives include - paying a mutual fund manager (who will skip the SpaceX ipo) - other assets classes like real estate and bonds - less diversified stock holdings
In this story we determined that S&P is going to choose a path different that other ETFs. Does that mean these ETFs differ in quality? Which should you pick?