[some_guy_there]

Arguments like these assume that the company is already operating at maximum capacity, and can produce no more profit. It is entirely possible that robotics can produce more profits than possible by humans alone, and a fraction of the newly generated extra profit can keep the workforce still employed in some other new task, like maintaining the robots. For example, it was unlikely that anyone could curate the web manually, but Google automated the entire process. Perhaps few people at Yahoo directories lost job, but there was overall gain in employment due to an algorithm (Pagerank).