DejaMenu - multiple menubars for multiple monitors

“DejaMenu will display the current application’s main menu as a context menu when a key combination is pressed. This is particularly useful for people using multiple monitors. Since the Menubar only appears on a single monitor, it is awkward to use applications on a different monitor. DejaMenu solves this - just press the configured key combo, and a copy of the Menubar is right there for your to use.”

This is a stupid hack and I resent having to use it, though I’m glad that it exists. Why can’t Apple let me just render the menubar on more than one monitor?