Mac's shortcut paradigms developed independently of IBM's CUA so they're definitely not complicated for the sake of complexity. I actually think for use with a unix-based operating system, they're much more sensible. There's no overlap with terminal commands that are mostly based on control, thus you don't need to remap basic things like pasting in the terminal to ctrl+shift+v.
> The delete key, man.
It doesn't exist as a physical key but it does work with an external keyboard. Alternatively, you might find something like Karabiner Elements [1] useful. You can make all sorts of arbitrary changes to the keyboard's behavior, including the built in one. This is sort of similar to setxkbmap, xcape, and interception-tools in linux land.
