So Apple is obviously an evil, profit seeking company that exploits users and developers, maintains a monopoly and actively hurts efforts towards openness.
But bro, what else am I gonna use? Do you think Google is any better.
And, as you already noticed, most open source alternatives suuuck. (Man, I'm gonna regret saying this on an FOSS community) With some research you'll get a usable desktop OS for some use-cases, but phones such as Fairphone and Purism are another story entirely. Don't even think about watches or tablets. I love the Purism Firefox demo, where they enthusiastically say: "With Settings unusable in Portrait, it's time to switch to landscape mode".
The "you think ... yet you buy ..." argument is pointless, because it ignores the realities of monopolies and globalism. I'm sure his T-Shirt that day wasn't made from ethically sourced cotton or whatever.
Building abstractions and tools to reduce busy-work has been the goal of computer science since the moment we created assembly. The difficulty lies in finding methods that provide enough value for enough use-cases to outweigh the cost of learning, documenting, and maintaining them. Finding a solution that works for your narrow use-case is easy - every overly eager junior has done it. However, building solutions that truly advance CS takes time, effort, and many, many failures. I don't mean to discourage you, but always be aware of the cost of your abstraction. Sometimes, the busy work is actually better.