Seen While Driving

So I was driving in the suburbs and in front of a church there was one of those portable signs on wheels that read, "Christian Karate." Will someone please explain to me why such inanity is necessary? Are the concepts of peace and self-control central to martial arts really so heinous as to merit shielding the children from them, because they might sound "too Buddhist"? Puh-leeeze. Just because something is "Christian-based," that doesn't necessarily make it wholesome. Just ask the kids from the FLDS compound that are now scattered across the state.