Dear Sri KRSji
After all it is one of "harvesting souls" on the one hand and "retaining the souls" on the other!
For if the native religion doesnot retain the souls, it would face extinction in its own land!
Like the Jains and Buddhists in India.
The Buddhists in India are less in numbers than in countries like Sri Lanka, China, Japan and many other South-east Asian countries, though it originated in India.
As for as the European Nations and American Nations, they continue the cultural invasion on many countries including India, because they feel that is the way they can subjugate India. The early address of "Lord" Maccauley on 2nd February 1835 in the British Parliament is quoted hereunder.
"I have travelled across the length and breadth of India and I have not seen one person who is a beggar, who is a thief. Such wealth I have seen in this country, such high moral values, people of such caliber, that I donot think we would ever conquer this country, unless we break the very backbone of this nation, which is her spiritual and cultural heritage, and therefore, I propose that we replace her old and ancient education system, her culture, for if the Indians think that all that is foreign and English is good and greater than their own, they will lose their self esteem, their native culture and they will become what we want them, a truly dominated Nation."
In the 21st Century, the invasion is on the religious heritage which has remained robust even after a thousand years of political invasion. This time around it is abetted by commercial invasion.
There is reason as to why the exploitation of oil resources of American continent are slower than that of Middle Eastern resources. And the Gulf war and all that war are oil wars coupled with war on religions. As long as mankind is there, such unkind invasions on one another will continue.
Pranams