You're not wrong, but you do come off as a bit of a dick about it here.
Separately: Apple machines are priced (and broadly-speaking, specced) as premium all-rounders, with an emphasis on quality-of-life, ease-of-use, build quality, design, and above-the-curve hardware guts. This involves a premium price tag, and selling a premium, easy experience. Unfortunately for gaming enthusiasts, those priorities on display don't typically include GPUs with mountains of TFLOPS. In the gaming enthusiast space, there's a disproportionate emphasis on performance tinkering, having oodles of GPU power, and being clever with bang-for-your-buck. None of these things align with Apple's approach to building and selling Macs; its almost a different world. Small wonder that "serious gamers" scoff at most Mac offerings.
I did the AAA-gaming-on-a-MBP thing for a good number of years, playing various Battlefields, Fallouts, and Mass Effects, and yeah, it was an expensive undertaking. As long as I didn't care too much about playing at reduced details and resolutions, it also worked out OK. Eventually my lifestyle didn't ask me to indulge the hobby on the same portable machine that I used for everything else in my computing life, so I bought an Xbox One. It runs Mankind Divided at 900p on whatever settings Eidos Montreal felt worked best, at something around 30fps, and none of that really matters too much because it is a terrific if somewhat flawed game that's a joy to play and I wish they'd make another one already!
On topic: OGL being deprecated seems to be something of a loss in theory rather than practice. Consensus seems to be that Metal has turned out fine, maybe even rather good, and big engines and big porting houses are using it. Life will carry on.