I don't know why people are not more concerned about regulation. Maybe I'm missing something but I've put a lot of thought into this and come up with the same conclusions. If bitcoin starts getting a sizable market share I don't see how BIS, IMF, and the G20 nations don't hold conferences and coordinate legislation in multiple nations banning the exchanges using anti terrorism and money laundering as the excuse (spare me the comments of the dollar being used for those things, in not saying it's a legitimate excuse).
The other avenue for governments or banks (agents of governments) to take would be to buy up large sums of bitcoins on the OTC markets and sell them on the exchanges during illiquid trading hours as it has been proven banks to do with the silver market.
Either way if governments have succeeded in suppressing the global gold and silver markets to prop up currencies I don't see why they can't do the same to our tiny market.
I'm not sure if anyone is doing it at the moment but I think our community should be engaging law makers in the US congress as with other countries and donating to them in bitcoin. Get law makers invested in the system and they will be championing its success.