Sorry that can't happen, because the physical commodity markets are too small and illiquid to hold the $trillions of liquid wealth locked up in bonds and stock markets.
That statement makes no sense!
The bond market is selling unservicable debt, aka bad IOUs, not "liquid wealth" as you put it. The people buying the IOUs will eventually get shafted and hold a bag of zero, and when they do, things like metals and Bitcoin skyrocket while the debt markets collapse (and take down their respective currency with it). It is not required to transfer the market cap from bonds to metals and Bitcoin in some type of orderly process on an exchange.
As a primitive example, let's say you only have two currencies on earth - the peso with 10% of market and the shekel with 90%. The value of all labor is represented by those two assets. If the shekel collapses, there's no such thing as "the peso is too illiquid to absorb the shekel market", it gets it by default - literally and figuratively.
If the govt buys their own debt, it's the same thing as printing paper and you're essentially transferring value to Bitcoin and metals in that manner anyway. If governments try to rig metals and Bitcoin downwards, all it does is create bigger gains for the smart money that buys it while it's repressed unless you actually believe you can continue the fraud to eternity (not possible).
This is why assets are likely to flow in US stock markets (via the US dollar) as the sovereign bonds start to fail in Europe.
Again, this doesn't make any sense either. For the stock prices to go up, those companies actually have to be moving product off the shelves, and the economic outlook of every country is generally bad. So you're basically saying a company like Ford, even though they are selling no cars, is just going to skyrocket in value for no reason? You're describing a speculative bubble, and those speculators would instantly sell the asset because they know the fundamentals are bad and put the money somewhere safer (something like agriculture that comes before cars, and safe haven investments like metals and Bitcoin).
If there is a truly decentralized crypto-currency available when the US stock market begins to overheat at nosebleed levels, and if it has gained sufficiently liquidity, then it could see a tremendous influx of capital. Unfortunately, Bitcoin nor the altcoins have solved the scaling and decentralization issues.
From my estimates, all Bitcoin would need to do is scale to 8MB to allow market penetration as a checkbook type device for large value transactions in the middle/upper middle class of around $5,000 - $10,000. At around 1-2 MB, Bitcoin would be more of a tool for the top 2-10% of wealth assuming we rely on on-chain transactions to prevent fractional reserve. It's unknown just what percent of the transaction volume is required to be on-chain to prevent fractional reserve. If you think the answer is 100%, then obviously only something like LN would work. I don't care if you think it's "flawed" or whatever, that would be the only type of solution if you require all transactions on-chain.
The only other alternative would be to use a technically federated chain where verification is centralized amongst one node or a few federated nodes, but the centralized orderer/verifier can't actually double spend or anything like that. All they can do is take the thing offline and then you're forced to manually replace them somehow. Realsolid actually already coded this system out, but it's a pretty hard sell being technically a federated chain because it has no way to replace the verifiers should they spontaneously die.
Governments already have a helicopter money system, it is called "food stamps" and "unemployment insurance". The plan of the TPTB is to turn more than 50% of the people into social welfare parasites, so they will always vote to continue the totalitarianism.
There will be no dropping money from helicopters. Just more and more debt piled onto to people who have to beg for more totalitarianism so they can get some government handouts for their basic necessities of life.
And you think creating a dystopian civilization run by a single room full of jews to control a population of 6 billion will actually work? No, it will not work. The end result of such attempts is always being beheaded by guillotines.