A government is like fire, a handy servant, but a dangerous master
Government comes in many forms but at its core government is a monopoly on the invitation of force. Governments are instituted to use force to compell action or inaction. The laws of a government can be democratic or dictorial but in either case the laws are backed by this threat of force
Evil is a subjective value. So for a government to be evil you would need to agree with the statement "it is unethical to initiate the use of force"
Of you believe it is unethical to initiate force then one would alose believe government is evil or unethical