This is a valid argument. In the first sentence, it refers to killing adults and children. In the second sentence, it refers to killing fetuses. Some findings from research on logical thinking. No cigarettes are inexpensive.
Some addictive things are inexpensive.
Therefore, some addictive things are not cigarettes. No addictive things are inexpensive. Some cigarettes are inexpensive. Therefore, some cigarettes are not addictive. Unwillingness to reason about hypothetical premises.