I think they are all descendants of Ishmael.
No the Pashtun peoples are a sub group of Iranian. Think Babylonia if you want to go back in history.
The Arabs are completely different and actually not thrilled about the recent developments.
Now, the worst parts of Arab culture has arguably taken over many Islamic peoples (not all). So you might be thinking of that.
FWIW, I’m Israeli. This is local news.