There are a number of references to Satanism and other dark themes in HIM's music and lyrics. For example, the song "Wicked Game" contains the lines "I'm your wicked game / I'm the one who brings the pain" and "I'm the beast inside you / I'm the one who sets you free." Another song, "The Funeral of Hearts," features the line "I will kill your gods and burn your churches."
These lyrics have led some people to believe that HIM is a Satanic band. However, the band has repeatedly denied these claims. In a 2003 interview, lead singer Ville Valo said, "We're not a Satanic band. We're just a band that writes about dark things." He went on to say that the band's use of Satanic imagery is simply a way of expressing their feelings of alienation and despair.
HIM's music has also been criticized for being too depressing. Some people believe that the band's focus on dark themes is unhealthy and can lead to depression and other mental health problems. However, others argue that HIM's music can actually be therapeutic for people who are struggling with difficult emotions.
Ultimately, whether or not HIM is an anti-Christian band is a matter of opinion. There is no doubt that the band's music contains some dark and disturbing themes. However, whether or not these themes are intended to be offensive is a matter of debate.