1) same reason Constantine of Byzantium picked a minority faith that's regularly persecuted.
2) same reason the Khazars picked a minority faith that, in other nations, is a frequent scapegoat.
3) because the Ethiopians and Indians don't need to be threatened to see a good thing when they see it.
Keenir
Not sure why Constantine picked Christianity although the fact it was a large minority/majority in the territory ruled by his rivals has been suggested. As it was by many reports he largely fudged the issue until he was on his deathbed.
From what I have read the Khazers picked Judaism because it was a similar faith [with compatible main trends to Christianity and Islam but not one of them. Hence it was politically neutral. No danger of finding yourself getting direction from a religious leader influenced by another power]. This might apply in some areas, possibly you might see the Khazers adopting Islam in this TL. However wouldn't affect Ethiopia as it was already Christian and unlikely to affect India who's native religion stood up pretty well to full blooded Muslim conquest.
I think Islam might well offer advantages to elements, especially merchants given their prominence in the faiths structure. This could even be increased if Islam is not associated with a militant expansionist empire. However the problem they will face is that most rulers with look to where the power is. With Byzantium and Persia still the primary powers this is likely to be Christianity and Zoroasteriam. Often people follow where their rulers lead, if only to gain best access to patronage and position. This is even more likely if the religion is a jealous and exclusive one which gives only limited tolerance to others as conversion may well be compelled. Both Christianity and to a lesser degree Zoroasteriam under the Sassanid’s seem to have followed this path as, later on so did many Islamic states.
As such I suspect that while Islam may attract the attention of elements of population and may repeat its historical successes in SE Asia it is unlikely to be successful elsewhere without military successes. The only exception might be sub-Saharan Africa where the slave trade and search for gold led to expansion into that region.
Steve
Keenir
Not sure why Constantine picked Christianity although the fact it was a large minority/majority in the territory ruled by his rivals has been suggested. As it was by many reports he largely fudged the issue until he was on his deathbed.
From what I have read the Khazers picked Judaism because it was a similar faith [with compatible main trends to Christianity and Islam but not one of them. Hence it was politically neutral. No danger of finding yourself getting direction from a religious leader influenced by another power]. This might apply in some areas, possibly you might see the Khazers adopting Islam in this TL. However wouldn't affect Ethiopia as it was already Christian and unlikely to affect India who's native religion stood up pretty well to full blooded Muslim conquest.
I think Islam might well offer advantages to elements, especially merchants given their prominence in the faiths structure. This could even be increased if Islam is not associated with a militant expansionist empire. However the problem they will face is that most rulers with look to where the power is. With Byzantium and Persia still the primary powers this is likely to be Christianity and Zoroasteriam. Often people follow where their rulers lead, if only to gain best access to patronage and position. This is even more likely if the religion is a jealous and exclusive one which gives only limited tolerance to others as conversion may well be compelled. Both Christianity and to a lesser degree Zoroasteriam under the Sassanid’s seem to have followed this path as, later on so did many Islamic states.
As such I suspect that while Islam may attract the attention of elements of population and may repeat its historical successes in SE Asia it is unlikely to be successful elsewhere without military successes. The only exception might be sub-Saharan Africa where the slave trade and search for gold led to expansion into that region.
Steve