1. You're not debunking the assertion that they actually wrote that on a missile.
2. It is entirely possible to be against "pedophilia" in the sense of trafficking, raping, and discarding (or killing) of small children - while also being in favor of "child brides" who (it's assumed) will be taken care of and live a long and fruitful life with their husbands.
3. The definition of pedophilia is a slippery slope, with some (typically older single women) attempting to expand it to include any kind of age gap, such as 30 year olds and 20 year olds. Accepting this expansion of definition is a Bad Thing because it gives literal child rapists a form of leniency, by symbolically redefining them into a category that could include, for example, Leonardo Decaprio and his 25 year old girlfriends.