Ur just confirmed out what I have mentioned in my post!
The introduction of other racial and religious groups simply exacerbated the problems already faced by the nation. If u already had a problem why introduce others to the mix?
My beliefs has been a harmonious society consists of predominantly a particular race and religion with a mixture of others that don’t become a concern to the majority to the predominant group.
That to me is the secret for successful for a multicultural society…unfortunately, we have gone to a demanding mongrelised society! We have deteriorated our nation to the level of the US and UK.