Language changes over time and words don’t mean the same thing forever. The entire purpose of language is to communicate. So if you have a Mac and say you are a PC user, you are failing to use language well. Apple themselves helped facilitate that change. It can be less consistent with Linux on a PC, I agree. But language is an evolving meme (as per the original definition of meme, not the cat photos). And to not acknowledge that is like being a young earth creationist with language.
Do you also argue that anyone who is happy is part of the LGBT community?