Mat 15:26 It is not good to take the children's bread and to cast [it] to dogs.

Again, this is a surprising statement from Christ, referring to the Canaanites as dogs compared to the children of Israel. Didn't Christ come to save all humanity? However, this point of view doesn't take into account who the Canaanites were and what they believed. Though I am no expert, (and get my information from websites like theology.edu), the Canaanites were among the most immoral forms of pagans, who literally worshipped immorality, practiced religious prostitution, and sacrificed their children to their gods. In Exodus and Deuteronomy, the Israelites were instructed to exterminate the Canaanites so that they wouldn't be infected by their immoral beliefs.

The idea that Christ could "love the sinner but hate the sin" is certainly correct, but that doesn't mean that Christ could accept perverted practices as acceptable in the name of religion. In our time, when most world religions have been heavily influenced by Christianity, it is hard to think about an "immoral religion," but we still have them with us today. The "if it feels good, do it" ethic of much of modern culture is a secular form of the original Canaanite faith. Though it doesn't have the Canaanite pantheon to put a face on what it values, the pursuit of sensual and orgiastic pleasures is just as much a religion today as it was in Christ's time.

Characterizing such people as "dogs" is descriptive. Such people have as little moral sense as a dog. The idea that people should live their lives like dogs is unacceptable to any moral person of any faith.