Do they understand what the implications to governments would be if a significant portion of all commerce was done using bitcoins as opposed to the USD?
Do you understand what the implications to yourself would be if a significant portion of all commerce was done using bitcoins? Few hints to help you get started:
Salaries paid to addresses on the record with revenue agencies
Isn't this what the IRS already does?
Transactions can be kept private by sending to addresses not recorded with agencies.
Blockchain data mining for marketing and security purposes
Isn't this what Google already does.
An emerging market for customer data (addresses used)
That market exists today.
Mining is a big game. You choose your payment processors, who include and validate your transactions in the blockchain for a fee.
Not sure what your point is here. Are you implying that miners would "gouge" customers because if so I expect free market forces to easily deal with pricing.
Bitcoins are considered money. Coin mixing services are prosecuted for what they are: money laundering.
Are they going to arrest everyone? Also, what happens to the country when other nations accept Bitcoin and capital flight ensues.