I don't think that's necessarily true anymore. Vulkan and even OpenGL have shown a lot of promise recently, in real world tests. You may be right that it's simple idealism from my end but I (want to) believe that Vulkan is coming along at the right time/space to gain broad support in the industry. I'm no fan of DX12 either, or NVN or whatever it is that Sony has. The low level nature of MoltenVK and likely the future DX12 <-> Vulkan layer will result in a small enough perf hit that it will make sense for developers to target Vulkan instead of 3 different APIs. Perhaps similar libraries will become available for Sony and Nintendo platforms as well. I hope that the trend will continue and one day I won't have to resort to OpenGl ES in order to write something that's truly cross platform.