Is Facebook creating it's own Tax heavens?

As the CEO of Facebook Mark Zuckerberg testified in front of the House of Representatives Financial Services Committee in the Congress today to get his message about unbanked US citizens benefiting from the use of Libra, he said that America may lose its financial leadership unless it permits fintech innovation and supports Libra.
This appearance left no stone unturned to the fact that Mr Mark Zuckerberg is creating a tax heaven within social media networking site. Which could lead  great impact to the society as this cryptocurrency may be used as a beneficial system for terrorism throughout the world, aiding them by unknown sources. And these unknown sources can found this terror creating organisation from anywhere in the world at anytime, so this is in short an a do the fascism and Nazism.
These questions were raised by the congressman befittingly. Respectable congressman asked this question, that why is there a need of an financial system for a Facebook to have? Mark responded and came up with some of lamest excuses. One of them were that “I want all of my Facebook users to have an international banking accounts because many of the user of Facebook still doesn’t has an access to banking accounts”. To which one congressman replied that  you don’t even know how many Afro Americans or Asians are using Facebook and the only thing that you know is how many people doesn’t have an access to banking so Mr Mark Zuckerberg you are only focusing on your business. Another congressman came up with a statement that how can a person who is one of the richest man hidden behind poor by saying we are doing this for the welfare of the common masses.
This clearly indicates that this very own market of crypto currency, is being designed to help the business of black market.