Since the late 1960’s Canada has been inundated with Jamaican blacks. I believe fully half of all blacks living In Canada today, are Jamaican immigrants or their born in Canada children.
They have caused a huge (and very violent) crime wave in what was once very peaceful cities in English Canada (just in the past few weeks here in Toronto, four 15 year old Jamaicans were killed by other black teenagers).
They have done much the same thing in England.
I believe in 2008 Jamaica had the highest murder rate in the world.
In my view, based on a lifetime of experience working and interacting with them, they are among the least intelligent and most beliggerent, obtuse, hostile people I have ever encountered. If there were just one single black immigrant group I could remove from the country it would be them.