It's which came first the chicken or egg?
The fall of the dollar will happen because anyone(everyone) with significant wealth will divest from the dollar CAUSING the de-dollarization. That's the point of the indicators.
Don’t forget that you also can invest in negative dollar by taking loans. Then, the reduction of purchasing power does actually benefit you.
So, whoever has significant wealth will do exactly this and take out loans to purchase productive assets and then, later on, pay back much less because the dollar lost value in the mean time.
This works out as long as the interest rate is lower then the actual annual loss in purchasing power.
Shorting is a bad idea unless you can accurately predict the timing of the crash. Otherwise it'd likely your gains will go down to -5000% before they suddenly rocket up to 99%. And you'll close your position out of fear, when it's about -1000%.