Earlier quoted context omitted.
No. Fiat is backed by tax base. US has more assets than debt. Additionally US is the largest economy in the world, how much would the right to tax it be worth? A lot. It's not at all just perception and influence as you claim.
US economy has been second largest for over 10 years now [1]. [1] https://ourworldindata.org/grapher/gdp-maddison-project-data...
https://data.worldbank.org/indicator/NY.GDP.MKTP.CD
Any other official sources would tell you that US is the largest economy in the world by GDP, which is the most commonly accepted metric.