The bitcoin itself cannot do this because there too much people hating on it and its too small right now also.
You forgot that bitcoin is a decentralized currency therefore no one has absolute control over it. Even if the rest of the world conspire to make a new digital currency to take out bitcoin, it wont really affect bitcoin . Therefore there is nothing to be scared of despite the threat from most people that keep saying bitcoin is making the world worst as it provides a new way for money laundry