If you keep crossbreeding cattle willy nilly you end up with a...

If you keep crossbreeding cattle willy nilly you end up with a mob of runout mongrels ,so I wouldn't use that as an argument.
Australia has prospered by bringing in hard working people from all nations who have been willing to become part of Australia.Australia's latest version of multiculturalism is setting up ghettos of people who do not want to work,learn our language of otherwise fit in This is stupidity at it's worst,and not racism to condemn it.
There is no race of people I would not welcome with open arms,but there are ideas that will not fit in that I am dead against importing.