I mean by useless is it's so slow you can't make games or even big projects for GUI, only you can do is AI/ML, Data Science, and basic stuff. I think Rust is better because of its speed and language capabilities?
"Python’s strength is ease of development"
That's what I usually see with Python. I think that's the reason people should choose it.
"Performance isn’t a big concern if you just want to quickly develop the app you want."
You're correct with that, but if your project is to make a touch screen app for fast food restaurant, now you're wrong because of Python's performance.