The governments of the world will piss on your rights to freedom of speech, if you use anything to evade taxes and if they cannot manipulate the thing you are using as a payment option. It is after all about "control" and we know Bitcoin is removing some of the control that these governments have.
Our rights are trampled on every day, so trying to legitimize Bitcoin with "Freedom of Speech" trickery ..is not going to change the way governments see Bitcoin. (Crypto is a threat to their control)