It's much easier to imagine a scenario where physical money is controlled by an outside force than crypto. Holding physical zimbabwean dollars, for example, did not ensure you held anything of value.

I think arguing that control over crypto transactions is more likely than the devaluing of physical currencies is a little far-fetched since we've seen plenty of the former without much of an example of any centralized power being able to control users actions on the internet.

Just think of all the wealth changing hands on the internet today against the will of governments.