Great points, I had a conversation with someone recently who made similar accusations againsr bitcoin. I made 2 points

1. I personally have already profitted from bitcoin and no one has taken that away.

2. Bitcoin might just be one step towards a better currency and if government takes it on, the market will find a better way.

Of course, being that I work for Adam Kokesh, I need to point out that with the federal government here in the US disolved, many of these concerns go away.