Your logic isn't going to help the user. I can't either, but, I'll try to meet halfway.
Yes, D3D9 was nice for people with lower hardware. Dolphin's job as an emulator is to emulate the GameCube and Wii. D3D9 cannot do what we need it to do for emulation in the modern environment. If your hardware can't handle D3D11/12/OpenGL3, then it's simply not supported. I know that's not the nicest thing, but, in the long term it's important for Dolphin to move forward.
Yes, D3D9 was nice for people with lower hardware. Dolphin's job as an emulator is to emulate the GameCube and Wii. D3D9 cannot do what we need it to do for emulation in the modern environment. If your hardware can't handle D3D11/12/OpenGL3, then it's simply not supported. I know that's not the nicest thing, but, in the long term it's important for Dolphin to move forward.