Many authentic hadith says the Muslim Ummah is like one body.
Also the crossroads and transit routes of world trade are located within Muslim majority areas. Considering that the canals and straights joining the Black and Mediterranean seas, the Mediterranean Sea with the Persian Gulf, and the Persian Gulf with the Indian Ocean. Additionally, the world's richest lands, in terms of such strategically important natural resources as oil and natural gas, are located in Muslim countries. The effective use of these resources represents a strategic opportunity for the Islamic world to increase its impact on world politics.
And just like a European Union, most Muslim majority countries have their land connected with each other.
Why not make a Union, I only see benefits in making a Union with Muslim majority countries.
You conveniently dodged my question. Caring for muslims is not the same as going for an "Islamic union". My friend, the main reason Muslim countries are not having an "impact" like you said is IMO because they have lost their moral compass and go against the very tenets of faith that they proclaim. Why because they conveniently use Islam in politics and just lip service and fiery sermons against Israel is enough to fool the gullible masses. That is why A
Democratic governance, value for life, freedom of speech (Even if it meant criticizing the head of state), being a welfare state were all suppose to fundamentals of Muslim majority countries, but they bypass this very fundamentals saying its not in the best interests of Islam.
One unfortunate aspect is unlike in India where the British left a democratic government from the beginning, the British and French left the government in the hands of Kings and shaikhs in the Arab countries and thus depriving a say for the common people for their own strategic interests. Of course the autocratic rulers in these countries are also to blame.