This analogy would work if it weren't for the immigrants who arrive with no connections and resources, and successfully make it through hardships within one or two generations.
A more apt analogy may be a marathon where there are bystanders who latch on to half of the runners and keep telling them, "you cannot make it, you need us to help you, the race is unfair".
>>new262+(OP)
Immigrants tend to have a high amount of education or resources relative to the societies they come from. Those immigrants come with their own sets of biases. Social infrastructure for, say, Indian people moving to Bellevue, WA in terms of social connections and wealth is better than Black american's have just ever had.