From my experience with people that are very pro Android vs the pro iOS crowd, it’s just that they’re trying to justify their own choice by uplifting the OS they chose and sometimes tend to focus only on the negatives of the other OS. The same can be said for the various desktop OS crowds.

I’ve used both Android and iOS, as well as Windows and MacOS (and intend to try Linux at some point) over the years and I never thought one was generally better than the other. All these OSs have different target users and that’s ok. Just because you’re not the target user for OS A, doesn’t mean that OS B is objectively the best OS for everyone. It’s just the best OS for you. And why people feel the need to bash other people’s choices or even make fun of them for it is beyond me.