But from a secular & logical perspective, why were 2 of the worlds largest religions, along with Judaism, born in
this region only?
Because those religions are Semitic imperialisms.
Frequently used excuses as to why the Arabs were chosen by god are that Arabic is the best language, or that it is the most beautiful.
Better ones I've heard are that Arabs were noble people, or that they needed Allah's message more.
The Qur'an itself says it is in Arabic so that everyone would understand (LOL).
حم
وَالْكِتَابِ الْمُبِينِ
إِنَّا جَعَلْنَاهُ قُرْآَنًا عَرَبِيًّا لَعَلَّكُمْ تَعْقِلُونَ
Ha’. Mim.
By the Clear Book;
verily We have made it an Arabic Qur’an that you may understand. [Az-Zukhruf 43:1-3]
Main hub of civilisation then?
What about China?
Have you considered the civilizations of the Americas?