In a world with a million different use cases and a billion different experience levels, different platforms appeal to different people.
As a techie, I perceive that Apple is there to rip me off, and I don't tend to like it when companies do that to me.
As a person in general, I tend to like to shit on things for the kicks. To me, a fleshed out debate about shit nobody should care about is like a round of gold. It's mentally engaging and relaxing to me.
Even if Apple wasn't a rip, I believe they sell shitty Unix boxes, with their iPhones being locked down way past the point I consider reasonable. It's an entire ecosystem of gimmicks and cuckolding that treats me at least like a sheep that could only possibly want the options that Apple gives to me, and little more.
There is an objective and subjective side to Apple. Objectively, they have been known for selling tech at stupidly high markups, like with some of their recent laptops with honestly sub-par performance compared to other options. Subjectively, you can still like them despite that. I can understand the appeal of an incredibly polished machine, and it's likely why MasterTech's mom likes it so much, because for someone who will only ever browse Facebook, a few web pages, and wants to play candy crush, it's a perfect device with honestly impressive optimizations in many places.
I like to be able to have full control of my machines, and while OS/X isn't locked down, I still consider it a less than perfect option compared to free Unix or Unix-like options such as Linux, Free/Open/NetBSD, and Illumos. That's just my opinion as a techie. I feel more at home with those systems, and it just doesn't seem as bloated and weird to me, unlike OS/X.
Don't get me wrong, I own an older Mac, and I do wish to collect them, as I enjoy their place in history, and their technology, but they don't offer me a compelling reason, and they have shown plenty of instances of anti-consumer practices like refusing to repair devices, restricting app support on mobile platforms, and releasing very questionable updates that hinder some devices. So when I engage in a conversation, combined with all these elements, subjective, objective, and personal, I tend to get a bit crusader like.
I do however like a a quote from Benjamin "Yahtzee" Crosshaw.
"It's worth remembering that all reviews are subjective, personal opinions, and if you've personally enjoyed a game, then they really shouldn't get to you. Unless, of course, there's a despicable, little, niggling doubt in the back of your mind, that maybe you're not having as much fun as you've convinced yourself you're having."
That talks about game reviews, and while this is a pub debate on an EE forum, I believe the same lesson applies. If you're talking about the best device to use, people are only ever going to give you their personal opinions, and Apple has the kind of history that can make people get very strong and unruly personal opinions, however if you're convinced that the device you are using is the best for you, then none of it should matter, and you shouldn't feel attacked. It does go the other way, people crusading over their personal favourites, outside of just pure debate for the fun of it to compare intellectual standpoints, can often get a bit to involved in something that doesn't really matter a whole lot.