I don’t know what to tell you. All the evidence says COCOMO is too inaccurate to use. Show me evidence that says it’s accurate.
Just because someone wrote a book and a few bankruptcy trustees used it doesn’t magically make it accurate. Just because something is systematic doesn’t mean it’s worth using.
If you do a bit of googling you’ll find that the majority of studies show that systemic models don’t outperform expert guesses. So yep vibes are general just as good.
Show me a large tech company that currently uses COCOMO to plan software projects.
Also if you are a dev outside of NASA or another safety critical industry and you think you’re an engineer, you’re kidding yourself.
Oh and try not to sound like an asshole next time.