I don't think it will completely blow up, but there will be enough economic pain inflicted such that the ordinary person will be happy to accept a central bank digital currency.
The cogs are already turning: https://www.gov.uk/government/publications/g7-public-policy-...
Half the country wants nothing to do with the federal government. If you visit places like South Carolina, Tennessee, Texas, Florida, Indiana, etc the people there are openly saying “prepare, the government is attacking us”
Driving around the country you’ll see upside down American flags (meaning country in distress), gadsden flags, etc you’re much more likely going to get people to accept ETH then take over the org or something.
This is an entirely inaccurate description of the process. Only countries were allowed to purchase gold for $35 an ounce, with the assumption that they would also "buy" $35 with an ounce of gold. This would ordinarily be considered a bad deal because the dollar had already drastically inflated since 1934, but Europe and Japan were desperate for liquidity to rebuild from WWII, so they were happy to trade physical gold for what was essentially slips of paper. When the US noticed that they were increasingly trying to trade these slips of paper into gold, the US ended the ability to do so. Saying that the end of Bretton Woods was a bad decision is really just saying that you want the US to instantly become bankrupt.
There is no reason to peg your currency to an arbitrary metal. If the government wanted to stop itself from printing money, it would simply stop printing money. Bretton Woods was actually a weaker protection against "printing money" than say a debt ceiling because Nixon was able to reverse kill Bretton Woods single handedly, whereas raising the debt ceiling requires an act from Congress.
There's another critical date: 1971. That was the year that Nixon ended the Bretton Woods System. [1] Bretton Woods was a defacto global* monetary system. Other currencies were pegged to the dollar and the dollar was convertible to gold at a fixed rate. This created a sort of soft backing to the dollar.
After it ended the final constraint the 'government printing' (this is not an entirely accurate description of the process, but close enough for practical purposes) infinite money became a viable option; one which they have vigorously pursued since. The above link offers a number of fun graphs demonstrating the changes revolving about that date.
When a federal government can go tens of trillions of dollars in debt, that absolutely destroys any sort of economic normalcy. Because they can offer what's, from their perspective, monopoly money for real services while the rest of the economy is forced to use real money. This applies not only to businesses, but also states - which are constrained by financial realities.
I suspect when this current system we've created blows up, it's going to make 1929 look like a bull market.
[1] - https://en.wikipedia.org/wiki/Bretton_Woods_system