I'm with you regarding RetroArch. I totally agree with you, however, why punish the MAME community for something out of our hands? We can't control what happens with RetroArch and to fight the cause only results in frustrations and does nothing to help MAME (which is what you are seeing). Maybe it's happening on the MAME side and I just don't see it? I guess it's different from a developer perspective, and I get why you and others would be upset.
Perhaps walking away and coming back later will clear your head and give you peace of mind? Sadly, RetroArch doesn't seem to be going anywhere (although I personally wish it would go away forever).
From a mental perspective, walk away and enjoy real life for a bit and come back later? Here's hoping ...
In any event, thank you for the great work that you have already done. I'm sure I can speak for quite a few people when I say that your work is very much appreciated.