You're right, that specifically is not skin off my nose or anyone else's. By the same token that you're not disagreeing with the content of my argument, I'm not disagreeing with GP's[0] opinion per se, but just pointing out that the hostility they're getting is a self-fulfilling prophecy brought about by the way they're expressing it. I'm not belittling their opinion, I'm belittling the fact that they are coming to this discussion with a position of 'Linux is bad because I don't like it for Reasons™ and if you disagree with that you're just another hater I don't have to explain myself to'. It's lame and unproductive and combative and not a quality contribution.
[0] Sidenote: I've never seen the term "GP" before - clearly you're referencing u/AnIdiotOnTheNet in some fashion similar to "OP" but would be curious to know what exactly that means.