I understand that your difficult experiences with travellers have made this an emotionally charged subject for you, but I would like for you to realize that those experiences have little relevance for the subject of this thread.
Not to mention that his casual racism / bigotry due to his anecdotal experiences will only cause a vicious circle - he expects them to be bad and thus he'll treat them badly which they'll most likely promptly reciprocate.
When the stars threw down their spears
And watered heaven with their tears:
Did he smile his work to see?
Did he who made the lamb make thee?