Sacrifice of children was pretty common, apparently. It happened in Israel, too. But maybe the common element is the Phoenicians.
And thou shalt not let any of thy seed pass through the fire to Molech
Lev 18:21 (KJV)
Moreover thou hast taken thy sons and thy daughters, whom thou hast borne unto me, and these hast thou sacrificed unto them to be devoured. Is this of thy whoredoms a small matter, 21 That thou hast slain my children, and delivered them to cause them to pass through the fire for them?
Ezek 16:20-21 (KJV)
Yeah, but when the Israelites did it, they were going against God's commands. When the Canaanites did it, they were following their's.
Maybe sorta like when Christians wage holy war vs. when Muslims do the same?