@wrennelson143 I don't normally dissect comments like this, but if you don't mind I'd like to reply to the points individually:
But the market is at an all-time high, again
It normally is. If you want to get out of the market when it hits ATH, you will never participate in a bullrun and make big returns. Many people have fallen victim to this before, and many will in the future.
And there is so much debt in the system
It's all just printed at the end of the day. Perhaps the greater fear should be that we keep printing money every time we hit an issue, and your cash gets inflated away. The interest rate should somewhat compensate you, if central banks can remain independent and trusted to to their job - and at the moment it appears they can - but there is real danger to holding cash. You are basically an easy target to tax if politicians don't want to do things the honest way in future.
Real estate is on the brink of collapse
I see little evidence of this. Real estate is actually an incredibly stable asset. Before 2007, the last time real estate went down was the 1930s, during which time there were multiple 30%+ drawdowns on stocks. Real estate can take higher rates. In the 70s it appreciated rapidly. It even appreciated through Volker in the early 80s. A real estate collapse is a rare event, it's statistically improbable it is happening now, and I see nothing to show otherwise
Consumers buying power is at 10-year low
Fair, but the rate of inflation is waaaayyy down, and in real terms, salaries are close to growth again, if not already in it, in many places
The multiple is the S&P 500 is high again
It is high, but we don't know what future earnings will be. If earnings start to grow again, the current multiple will be justified
Personally I truly believe it's better to balance the risks and remain invested than put yourself in a situation where you have to make difficult/impossible binary decisions with potentially very costly outcomes on either side