I think the anarchist bitcoiners are hoping Trump becomes president because in their opinion if America falls that means Bitcoin will rise as the replacement for the US dollar. And Trump is the best chance to topple America since the Cold War, and Trump is probably 100x more likely to topple America than the Soviets ever had a shot at.
So in their mind you bring in Trump, he ends America's role as the dominant country in the world, the dollar loses its special place in the world as America collapses, and then Bitcoin ascends. Of course they don't realize that it is way too early in Bitcoin's adoption for that to work, so if America crumbles under another Trump presidency all it would do is crash the price of Bitcoin as the American economy fails.
It's not a matter of "if", it is only a matter of when and how. America has been on a downward spiral for decades and if it happens overnight it might affect bitcoin price negatively but such a rapid catastrophic demise is unlikely at this stage. The more likely scenario is the continued downward spiral but at a faster pace. A radical like Trump would hasten that demise while a senile old man like Biden would ensure it.
This is good news for both bitcoin and the world economy because that slow demise gives the world enough time to "decouple" from America and that has been happening over the past 10+ years, speeding up over the past 2...
This is exactly why for example China is
slowly dumping the US dollar and US treasury bonds, or why capital is migrating elsewhere such as to India, or why BRICS was formed, etc...
America collapsing would not be good for bitcoin or the world.
Yes America has obviously been starting its fall the past couple decades. America was quickly hemorrhaging under Trump's four years, Biden coming in restored political credibility and stability for America, but he can't do anything to stop the monetary/debt problems and he can't do anything to stop the culture problems driven by republicans/conservatives.
Trump on the other hand greatly speeds up the fall. In Trump's four disastrous years as president I'd say America probably moved a generation closer to the fall. A second term would likely be even more disastrous for America than the first term was. The moment Trump won the 2016 election it became crystal clear there would be no turnaround for America, and by the time he left office in disgrace America's path on this fall had advanced significantly. Since Biden came in we've been back to a stable decline, rather than the rapid descent we got form 2017 through 2020.
A rapid catastrophic demise is unlikely....unless we give another four years to someone like Trump. He happily bankrupts the nation in every way imaginable if he thinks it will enrich himself. I'm not saying the nation would completely collapse during another Trump term, but it would again bring us A LOT closer to collapse. It's like putting a s**tcoiner in total control of bitcoin. Trump wants to hard fork America into a third world despotic country, and all his cult members are eager for that too.
As you said, a slowwww decline will allow the world to decouple from the US. But Trump ensures the decline will not be slow. It was a slow decline until Trump spent four years drastically speeding it up. Even without him being president the negative cultural impact of turning millions of Americans into cult members whose only goal is to make sure one political party has zero accountability for anything and specifically rejoices in corruption, while they want the other party to be destroyed so America turns into a single party state like Russia or North Korea, where political oppression is the norm, this lasting cultural impact by itself, even with a stable Democrat-led govt, continues to speed up America's decline.