I believe the correct answer is - with strong wording encouraging readers to take action. I don't think his style is balanced - he starts slowly, but then introduces very strong and opposing ideas about the topic. There are no expert opinions here - he just mentions research, but doesn't actually name it. He doesn't cite examples. We don't know if his reasoning is fallacious - it could be true, or it may not be. However, he does use strong words and urges the readers to do something about this problem.