No it is not. The concept of submission existed since man first stepped foot on earth. All monotheistic scriptures were revealed in different languages such as Hebrew and Aramaic. The final scripture, which is the Quran, was revealed in the Arabic language and was delivered through an Arab named Muhammad.
It's a fact that the Arabic language is the most efficient and sophisticated language when it comes to expressing detailed specifications and laws. The Most Gracious has promised us salvation through His divine book (6:51). The clarity and the specific detailing of His laws, systems, and commands, needed for our salvation, would have never been achieved through any other language.
However, God teaches us that this message is not exclusively for Arabs, but rather for the whole world!
[68:52] It is in fact a message to the world.
[81:27] This is a message for all the people.
[25:1] Most blessed is the One who revealed the Statute Book to His servant, so he can serve as a warner to the whole world.
[12:104] You are not asking them for any money; you simply deliver this reminder for all the people.
God also teaches us that language is irrelevant, when it comes to guidance. Some who are fluent in Arabic might not be able to grasp the true meanings of Quran while others who happened to be non Arabic speakers might read it in any translated format, heed all the examples and appreciate the wisdom in this book:
[41:44] If we made it a non-Arabic Quran they would have said, "Why did it come down in that language?" Whether it is Arabic or non-Arabic, say, "For those who believe, it is a guide and healing. As for those who disbelieve, they will be deaf and blind to it, as if they are being addressed from faraway."
Let’s not forget that most Muslims in today’s world are not Arabs! The majority of Muslims are in southeast Asia.
Islam is also known to be the fastest growing religion in the world irrespective of language or culture.