As someone who's tried gaming on Macs for 25 years, I can say it makes very little sense and there's no way to change it.
Usually, the upgrades for a Mac that would give an almost-acceptable GPU, RAM and SSD cost more than buying a regular Mac plus any other proper gaming device. This is never going to change. That's why nobody develops games for Macs, the market is always going to be a fraction of a fraction.
We've lived a golden era with Intel, since porting was easy and Steam jumped on.
On the other (literal) hand, iPhones sell more, people (especially kids) use them more and spend more on apps.
It makes a whole lot of sense to invest on them.