Christians fight against spread of devil worship because they believed the devil is the one who makes people to do bad/evil thing and when he is worshipped, the devil will have more power to oppress and control people.
What is devil worship?
Theistic Satanism is known to be a Religious belief that is often called religious Satanism, spiritual Satanism, etc.
It is known as the body of people or groups that sees Satan to be an their god and as such the bible states that the work of Satan is to do evil and separate man from God. Christians are against the worship of a being who leads others to eternal doom and to do evil.
Learn more about Christians from
https://brainly.com/question/855630