Earlier quoted context omitted.
2019 and you're still bringing up Flash ? And if you do own a Mac which I highly doubt you would know that nothing really has changed. I can still run the apps I want. I can still use Homebrew to install CLI tools and libraries. I still don't need to use the App Store. The only difference is that they finally got rid of 32-bit support which was a decision years in the making.
I don't have to prove to you that I own a Mac. Plus, bringing up flash was to further explain my point, which is, Apple getting rid of certain technologies in the computer sector as if they are the leader of the market which they are not. They already are struggling to keep their current users, and a move like this (getting rid of 32-bit apps) further decreases their market share.
I'm not sure the Flash argument really supports that point honestly. Leader of the market or not, Apple's refusal to support Flash on iOS was a major contributor to Flash's slide into irrelevance.
Although it would have probably happened anyway considering that Flash for Android was briefly a thing, and very much did prove the hypothesis that Flash on low powered mobile devices was a terrible idea.