He's not playing gatekeeper. Hackers have generally been known to like open systems or to force closed ones open. Just look at history. You're talking about a phone ecosystem, he's talking about a closed ecosystem.
They are implying I'm not a hacker because I like the Apple ecosystem, aren't they?
They're implying that you're not a hacker because you appear to lack the hacker's mindset. Maybe you have it for some interests but not others but from the hackers that I've seen it's usually a driver for much of their technology interaction.