Skill issues. And being toxic like that won't help anyone; it lets you look like a clown. Why don't you use standalone emulators instead, if that is what works for you? Nobody is forcing you to use RetroArch.
I personally think that RetroArch is one of the greatest and best software ever made. It is exactly what I always wanted and even tried to do some similar setup before RetroArch was invented. I'm sick of standalone emulators that work differently and each and every of them is a special snowflake and does not do everything I want. If you have only a few simple systems such as Snes9x and Duckstation, then you might not even need RetroArch. But if you have installed over 70 emulators in RetroArch for more than 70 systems, then its a godsend. It was already after 4 or 5 cores added.
The reason why RetroArch is not as easy as a single emulator is simple. RetroArch does:
- bring many different kind of emulators and systems, such as MAME (which itself is a multi system emulator), DOSBox (PCs basically), many consoles and handhelds and tries to fit it into single environment
- can be installed on and works on all kind of hardware and software, such as Windows PC (even on Windows 2000), Linux, on Nintendo 3DS, Android smartphones, Raspberry Pi, on Steam, Xbox, on Web Frontends in your browser, and more
- every system needs to work with the same UI and all configurations are setup the same way
- configurations need to work across all systems and environments, such as controllers
- while being extremely flexible and configurable
The price you pay for all of this is the added complexity to the system to manage everything. And sometimes not everything can be up to date, until they port or update the cores in RetroArch. There is no denying in. But I'm not the one who is crying here.