I completely agree. In the USA, I like to think that we would never allow Congress to establish an official religion. In fact, our Constitution expressly forbids it. The same concept should apply to money/currency. We should each be free to individually choose what we are willing to accept in exchange for our labor, time, services, etc. Forcing us to accept their fiat is tantamount to involuntary servitude.
You don't have to accept their fiat, as long as you render it. Buy only enough to pay taxes, like you'd buy any other commodity. Problem solved.
It's true that right now we are free to use bitcoins and aren't legally obligated to accept fiat, but will that continue to be the case in the future? In the past, when an alternative like e-gold or Liberty Reserve began to emerge, they found a way to shut it down. Fortunately, it won't be that easy with Bitcoin. In response, I suspect they will resort to more drastic measures in an effort to force us into their debt-based fiat currency. After all, their survival will depend on it.
You have a point. If bitcoin is seen as a real threat, all hell will break loose. It *is* their survival we're talking about. I suspect that's why Satoshi was so against people flexing bitcoin muscle with wikileaks & putting bitcoin in the spotlight. Tough revolutionary talk on this forum only validates bitcoin as a real threat, playing right in the hands of the opposition.