You don't have to move.
Just move your assets.
Meh.. I don't really see a positive future for the U.S. In general so I think moving in the near future would be beneficial to me.
You are in big wrong. To many people from all the other countries apply to go at United States and if they win it is a great party for those. They go there without nothing and without the needed knowledge. They want only to enter there and then make the impossible to adapted to the life of the Americans. There are intellectuals which make laborer work only to stay there and to secure a future to their children. You are there and want to move? If someone in my country will hear this will remain thunderstruck and shocked.
I will admit that the US looks very different from the inside than from the outside. (Looks better from the outside.) Life is still not too bad for most people, but to have a good career these days, you basically need to be in finance, technology, or be lucky. The strong dollar over the last few decades is pricing most other people out of global markets (and global products flooding into the US itself,) and the elites are *not* about to let the dollar decline (since they receive so many benefits from issuing financial assets) if they can help it. (If this is sustained, it would be similar to the Dutch situation, below.)
We know the US will lose reserve currency status at some point. Historically, life after loss of this status was OK for Britain, as US monetary power rose immediately after World War I and was happy to help ease Britain's monetary decline. But I imagine the story must be different when this happened to the Netherlands (after about 1700.) Life was good for the already-rich and the people who worked in a prosperous financial industry, but I imagine everyone else must have had a pretty tough downgrade in living standards.
For the US, the next ranking (eligible) power is China, which is not friendly. The only hope for the US IMO is that the world bypasses China and give global reserve status to India in a few decades, but India is still far behind China economically. My bet is still on a Dutch-style, not British-style transition for the US.