Adaptation in foreign country

The other day i was watching the news and found that there was a news of people mistreating foreigners in some country. So my father just started saying that it was a fault of the natives that they treat a person from the other country that way. And as usual i went into a big argument with my father because according to me the fault is of the foreigners.
Now you must be wondering why i think that way and is there any clarification for this. And i would say i do. Let me give you an example. if someone comes at your house and starts to live his/her way won;t you get annoyed and wish that he/she would leave?
The same way if someone comes to your country and starts to live his/her way and tries to spread his/her religion on the natives don't the natives have a right to kick them out of the country. This motive leads to misbehavior and may be aggression.

According to me if a person is going to a different country then he/she should try to adapt to the way of living of the natives and merge in the surroundings and that would create good relations with the natives. However people are so stupid that they fail to understand the fact that their belief in superstition and an unknown force [God] is creating problems and not anyone else.