To my knowledge people have talked much about bitcoin bane and it's rejected from the world but still they are not successful and it won't be true even we will not see that time when bitcoin will reject from the world and it is not controllable so people can use it every where in the world with out any further force and people use it for their good usage now.
Some government of different countries are rejecting bitcoin, we dont know the real reasons why they are doing this but it is a bad thing becaise they did not accept the next future currency of our world. Still bitcoin is on the top although some coutries are against to bitcoin.
I think the main cause of every government prohibiting bitcoin is that bitcoin is identical with negative things such as money laundering, terrorist funding or tools for illegal transactions. The government only sees from these 3 factors, indeed, we cannot deny that bitcoin can be used for these 3 functions, but certainly the government must be able to be fair, because not all users of bitcoin are mentioned above.