But what if the conversion was peacefull and wished? evolution of the culture?
Wished by who? Civilizations are not the same as individuals, and in any event I don't recall Constantine taking a poll on the conversion of the Roman Empire. And even if it is peaceful, the mental software of believing Christians, say, and old-style pre-Christianity Roman pagans were pretty different, leading to serious cultural changes. (A terrible lack of flying phalluses, for one thing.
Are the dravidian muslims less.. tamils, telegus, etc by example?
Obviously a lot of people thought Muslim Punjabis and Bengalis were not the same as the Hindu ones, or we wouldn't have a partitioned India...
Bruce