While I appreciate the analogy, like others have pointed out, it's kind of broken as gcc is designed to be buildable by other C compilers, or at least, it's not

While I appreciate the analogy, like others have pointed out, it's kind of broken as gcc is designed to be buildable by other C compilers, or at least, it's not impossible to bootstrap from a simpler C compiler. A closer analogy would be like trying to build Apple's Darwin distribution tarball into an OS image without XBuild or a MacOS install, or any of Apple's other custom/proprietary tools.