Apple isn't making any attempt to hide the fact that its batteries are non-user-replaceable. And I think it's clear to any reasonable person that the engineering of these devices isn't intended to generate revenue for the service department, but to create an extremely slim but solid laptop. Now, I think it's very reasonable for a consumer to decide that the'd rather have a replaceable battery than a slimmer laptop, and therefore they should avoid Apple laptops. So to answer your question, I think many would agree with you that it's a bad thing, but not too many would agree that it's unethical.