Perhaps if the utility of bitcoin were in the same universe as the utility of the dollar. Your theory only works if the basis for demand remains -- a huge assumption.
This is what you have not proven: If bitcoin enters the black market, legally viable alternatives will not take its place. Current demand IMO is based mostly on speculation in re to store of value -- not bitcoin's use as currency. There is little demand for bitcoin as an actual currency/payment system – people don’t
need it. If shit goes south, there are plenty of legal alternatives. And IMO, the average person – who bitcoin needs for mass adoption – is happy to use Paypal, credit cards, bank transfer, etc. without getting their hands involved in anything legally dubious. What will happen to bitcoin's perceived use as currency if it becomes particularly difficult to obtain fiat currency with it? It's starting to sound like the Peso! Will people be paying premiums to offload their bitcoin?
In the case of a US government crackdown, would you expect speculators to stick around? If so, why? And in such a case, what happens to all the VC capital that perma-bulls keep going on about? Successful VCs
love to invest in legally questionable ventures, don't they? Yes, any type of government crackdown on bitcoin is going to create a frenzy of investment!
Oh, drugs. Let's talk about drugs. Do you really think bitcoin could compare with illegal drugs in terms of demand?
For reference, in 1906, 25 million people were using opium (1.5% of the world population). According to the US Opium Commissioner, in 1911, US residents consumed 500,000 pounds of opium, or ~1 pound per 180 people. As for cocaine, in 1906, the US imported 2.86 million pounds of coca leaf, in addition to "large quantities" of manufactured cocaine.
Compare to size of bitcoin economy. Do you think there is 1 million bitcoin users, which would put bitcoin users at 0.014% of the world population? Give or take a couple 100,000 or so? And of those bitcoin users, how many are merely speculators, who will simply leave bitcoin during a prolonged downslide (or at the outset of panic) for other investments? Regardless, doesn't your scenario require mass adoption? Massive demand which currently does not exist?
Bittorrent? The decentralization that you speak of ... what would happen if Gox, Bitstamp, Bitpay, Satoshi Dice were to go down? (the latter won't be safe simply by ceasing to serve US residents going forward) ... and what would merchants do when they see bitcoin operators being picked off by the government?
Anyway, yada yada yada, more devil's advocate shit. But really this idealism is crazy! A lot of what I see here can only be described as pure
faith ... at least be open to the
possibility that our beloved bitcoin may fall on very hard times someday.
Oh, and regarding the last point of the OP, there is always the possibility that short/medium term outlook ≠ long term outlook. Or that one's outlook contains caveats that account for such things. Some of us think shit
may hit the fan in the future. That doesn't mean I'm selling now.
I'm going to run with this analogy for a minute. In the event of a 'crackdown' as you so aptly put it; Bitcoin may very well go the way of opium.
Outlaw it, and some enterprising individual will make heroin-coin. The H-coin will be the Ponzi many claim Bitcoin is today.
Governments and banks will formulate and issue synthetics like oxycodone-bitcoin (the regulated version) and offer it to those that wish to abide by the law.
1.5% of the population no longer uses opium, but nearly 10% find themselves addicted to opiates at some time in their lives. Regulating opium and poppy has done little to curb individuals' appetites for opiates. There is no question which one impacts more lives in a negative manner.
Most find themselves hooked on the legal version marketed by big-Pharma and regulated by big brother. This is analogous to the world's addiction to fiat/dollar printing, borrowing, and acquiring. At the end of the day, we are pretty damn good at policing ourselves without outside influence and control.
Bitcoin is the magnificently beautiful poppy. Anything else is dirty and destructive smack.
Once 1.5% (maybe less) of the world adopts Bitcoin, there will be no turning back. Excuse me for a moment, I've got to get my Bitcoin fix.