Many people seem to believe that it was Arabic and Islam that made all the different languages and religions of the Levant disappear.
Many of the languages and pegan religions disappeared with the widespread adoption of Christianity and with Aramean becoming the lingua franca.

Even many of the native Arab pegan Levantines came to adopt Aramean as their primary language.
The Arab Muslim Conquest, if anything, put back Arabic not only as a major regional language but the dominant one.
They reversed the Aramisation & the actively happening Hellenisation.

To all the Levantine nationalists. Arabic, a native Levantine language, reversed the Hellenisation and adoption of Greek, which is a non-native Levantine language.