Fakeroot on macOS tries to delete system directories

I’m having a problem with fakeroot on macOS. I created a pacman fork. When I’d like to delete a package, pacman tries to delete /usr/ instead of a subdirectory. On Linux, it is working fine, though. Error output: ~ sudo meme -R but-why checking dependencies... Packages (1) but-why-1.0-1 Total Removed Size: 3.75 MiB :: Do you want to remove these packages? [Y/n] y :: Processing package changes... error: cannot remove file '/usr/': Operation not permitted