as we know, many governments in the world are banning bitcoins and here I have my own why the government want to kill Bitcoin, because I think Bitcoin can be used for terrorist financing, money laundering, illegal weapons purchases, crime and tax evasion. therefore the government forbids Bitcoin, because Bitcoin transactions are difficult to trace so it is only natural for me if the government is very worried about Bitcoin and many country banning (block) Bitcoin.
but this is just my opinion, so if I am wrong I apologize.
Thank You.
You are partly right, but the ultimate reason why governments do not want Bitcoin is that they cannot control it. Bitcoin can and is existing without the governments. They do not need the governments. The governments want to control everything including Bitcoin. And since they cannot impose the same power over Bitcoin, they want it banned. The reasons you mentioned are not as related to Bitcoin as they are to the fiat currency.