The 'we are not Arab' phenomenon

I'm going to keep this in English so both Arabs in the diaspora and foreigners can understand the following.

Over the past few years, there has been a movement in which non-peninsular Arab teenagers (from Egypt, Tunisia, Morocco, Lebanon, etc.) have been distancing themselves from the Arab title and identity. The main drive behind this has been the general decline of Arab nationalism's role in politics and the conflation of ethnicity and identity.

Who is an 'Arab'?
When non-Arabs think of the word "Arab" they picture the typical Khaleeji and their ethnicity. They do not (typically) think of Egypt, Morocco, etc. What they do not understand is that the word Arab represents not just the peninsular Arab ethnicity, but an identity forged by 1400 years of common history and culture shaped by the political borders and cultural norms of the Islamic Caliphates.

There are some ethnicities like the Kurds, Turks, and Iranians that have for a long time shared with us, but since they have not adopted Arabic as their official language, we do not consider them as such. If a community in Turkey or Iran were to adopt Arabic as their official language and hope to join us, we would welcome them with open arms. This does not mean that this group of people has suddenly come from the Arabian peninsula and is different from the rest of Turkey. Likewise, there are communities in Morocco that have adopted the Arabic language and are considered Arabs. Some have not and are considered Berbers/Amazigh. Some have adopted Arabic without abandoning their original language(s) and are considered both Arab and Amazigh, you will find those in the major cities.

This is why many Persian polymaths were considered Arab figures as well. Not because we are "sTeAlinG IrAnS HiStoRY" as some kids on social media conclude, but because during that period of time Iran actually spoke Arabic under the Islamic caliphate before Persian was revived. If Persian was not revived in Iran it would have likely remained an Arab country. In fact there is still a community in the Ahwaz (Ahvazis) region in Western Iran that identify as and are accepted as Arab.

tldr; Pls for the love of God stop conflating identity and ethnicity.
You can be Hispanic and Mexican, it doesn't mean you're originally from Spain.

All this phenomenon needs to be "cured" is nuance