I don't disagree with you, but at the same time, if you were sure of this, you could simply sell everything now and buy it back for half the price. So although we all know/think that there are asset bubbles everywhere, I'm not sure how many are actually doing something about it. No matter what we think or what seems logical, the "its coming" part isn't a sure thing because we cannot predict the creativity of the powers that be to keep this going for much, much longer.
So if you try and save everyone now, and some actually listen, and a year later nobody is any worse off, you're gonna look pretty stupid, and I'm sure you know this as well. Where things are heading, no matter how sure, is also dependent on timing. Being right, but getting your timing wrong, is just as bad as completely being blind to any major event.