Could be, but I think it has more to do with the environments. Canada has A LOT of social safety nets. It is a country that doesn't incentive you for working hard and being successful. You end up bleeding money via taxes and cost of living for working hard.
Engineers and Comp sci majors for example make significantly less here and the jobs are scarce. You see stories of people tearing up once they leave Canada, with the same credentials, and make waaay more money in America.
On the flip side, America, with all its problems, is a fertile place for business. Even your education, depending on the field, is more valued.
I say all this to say, America is a more competitve nation, and you are incentivised to put in the work. America doesn't have the same financial safety nets Canada does. Jamaicans that go to America see this and are more motivated to work harder to succeed than Canadian Jamaicans.
One more thing, it used to be easier for Jamaicans to travel to Canada than the US because they are both common wealth countries. The type of Jamaicans that go to the US have to be more competitive (have more money, education, etc..)
