Well said
Of course, writing off evolution as a 'mere theory' demonstrates a very clear misunderstanding of the meaning of the word "theory" in science. In everyday language, theory is synonymous with conjecture. Not so in science, where is has a very specific meaning: a theory is an explanation of a set of events, based on proven, or at least well-tested hypotheses. It will also have been verified many times by unconnected research groups.