As a note, the indian thing in the US wasn't an inquisition, it was a land grab. There's a difference.
The Jews are that way all over the world, so singling out the USA is a bit unfair. Today Jews run the country, so there you go.
Blacks were sold and enslaved by other blacks in Africa before they came to the US, and their old gods were obviously pretty pathetic. However, today there's nothing to prevent them from practicing Santeria or whatever they want.