I think you are absolutely correct and the reason that the stock market is being so weird is quite simply "what else are we doing to do with that money?"
The solution for individuals: cash, gold, options, etc, aren't viable solutions for institutional investors.
Imagine that you're in charge of a $1 billion fund, what are you going to do? You can't put that into gold, cash or treasury notes. But all sectors are affected by this so you can't simply rebalance your portfolio. You can't go out and buy an obscene amount of call options because those would still way too risky at the institutional level.
For me this is why the stock market right now is deeply troubling. Not because "the elite's are out of touch", I know quite a few people in finance, people managing these billion dollar portfolios and they also have no clue what's going on. None of these people are delusional about what's going on, they just don't know what to do.
What's troubling is that this detachment from reality seems to be based on the fact that the entire financial system is effected and there's no way for it to react in a sane way anymore.
I don't claim to have any clue as to how this will play out, but when this reality bubble bursts it's going to be a very extreme event.