Oh, no question about it. I'm not a content creator, so if I bought a Macbook Pro, I'd want it to fill my gaming needs as well. I'm waiting for the Parallels benchmark results, but I'm not hopeful.Workarounds wouldn't be necessary, if Apple would support Vulkan. All non-Microsoft-owned game developers would then ditch DirectX support and focus completely on Vulkan. Almost all future AAA games would run on MacOS natively.
As for the hardware solution, GPD is interesting because even though it looks like a toy, it's much more powerful than my desktop computer (Core i7 with 16 GB RAM). It would free up some space and run cooler. It should pair up very nicely with an iPad.