Are Persians or Iranians Arabs?

It is said that because the Iranians are muslims and share customs with the Arabs are Arabs, but it is a total error; Persians are not Arabs at all, the fact that two ethnic groups are neighbours and share customs do not mean they are brothers or have a common origin. There are ethnic-Arab Iranians, but they are a minority and the rest are not at all.

Language
Persian is an Indo-European language that originates in common with almost all European languages and with many of India while Arabic is an Afro-Asian language specifically Semitic that has its origin in common with the languages of the Middle East and North Africa. An example about they are different languages are the numbers from one to ten in both languages:

Persian: yek, do, se, cahâr, panj, šeš, haft, hašt, noh, dah.

Arab: wāḥid, iťnān, ťalāťa, arbaʕa, ǩamsa, sitta, sabʕa, ťamāniya, tisʕa, ʕašara.

It is true that the Persian alphabet is based on Arabic and part of its vocabulary as well, and Arabic has adapted to a lesser extent Persian vocabulary, but they are not from the same family nor are they related.

Race
Persians share certain physical traits with the Europeans as having clearer skin, as they ethnically have a common origin with most Europeans; in fact, there are blondes with blue eyes. Arabs share certain physical traits with Africans as having darker skin, as they ethnically have a common origin with some Africans; in fact, some Arabs are so dark as sub-Saharan Africans.

Religion
Although almost all the Persians and Arabs are muslim, they are of different branches; almost all Persians are shiites and almost all Arabs are sunnis; both beliefs are basically the same, but the rites are slightly different and they are faithful to different religious leaders, the main reason why they will have conflicts with saudi arabia and other sunni-dominated countries.

History
Persia was one of the most advanced civilizations for that time of Antiquity while the Arabs were a society whose tribes faced each other living in precarious conditions.

Culture
Es verdad que la cultura persa está influenciada por la árabe desde que ha venido el islam y a la inversa en menor medida, pero antes ambas culturas eran totalmente distintas.

Geography
Arab lands are basically arid and sandy, while Iranian lands are mountainous with some vegetation.

It is true that Persians have adapted many Arab customs, but they do not make them Arabs. The same happens with the Turks, they have adapted many Arab customs, but they are not Arabs, they are of Asian origin.