The major factors affecting bitcoin are :
Change in government - it's simply means when another government enter there's will be reduction or addition of some policies.
Political instability - when political system in the country is not stable, everything will get down.
I don’t agree with you. In fact, it is very difficult for the government to influence Bitcoin.
Maybe the government's policy will make the price of Bitcoin fall like China, but it cannot affect Bitcoin itself. The inherent properties of Bitcoin will not be affected, and no one can influence or change them. The last thing I worry about is the government, because Bitcoin is not for the government.