You don't even have a fundamental understanding of the claims evolution makes, demonstrated by your insistence that the theory of evolution claims to explain the origin of life. So a semantic argument seems rather irrelevant.
I am aware that the theory of natural selection, as a narrowly-defined theory, does not address the origins of life.
However, the more generally used term “evolution” as it is commonly understood by most laymen (and therefore, by most people on or off Free Republic) involves the origins of life debate as well as the more strict natural selection issue.