Sometimes "merit" is a luxury that people can't even see, let alone, afford, anymore.
The Irish did not have a giant black stigmata painted on their faces that kept them the 'odd man out' their entire lives, no matter how hard they worked, how long they studied, or how well they behaved.
"Under great adversity", yes. That's the thing about "great adversity", MOST PEOPLE CAN'T OVERCOME IT. That's why it's called "great" adversity, as opposed to "insignificant" adversity.
No, lets demean all those folks who were unable to overcome the "great adversity" that we have all unfairly been subjecting them to for 200 years, instead, because that would be so much more … to our liking.
One cannot overcome ANYTHING when one assumes the label of victim. One's "tomorrow" starts with the thoughts, words and deeds of today.