It is an accurate assessment. Fairness has nothing to do with it. I agree with you the majority of rich people are born into wealth, thus making it easier for them to remain wealthy, this however does not negate the social mobility of those people who begin poor and become rich.
But again.. if you are in a low-income family and you statistically have a one percent chance of getting rich... how does that not negate social mobility?
http://www.americanprogress.org/kf/hertz_mobility_analysis.pdf
The key findings relating to intergenerational mobility include the following:
Ø Children from low-income families have only a 1 percent chance of reaching the top
5 percent of the income distribution, versus children of the rich who have about a 22
percent chance.
Ø Children born to the middle quintile of parental family income ($42,000 to $54,300)
had about the same chance of ending up in a lower quintile than their parents (39.5
percent) as they did of moving to a higher quintile (36.5 percent). Their chances of
attaining the top five percentiles of the income distribution were just 1.8 percent.
Ø Education, race, health and state of residence are four key channels by which
economic status is transmitted from parent to child.
Ø African American children who are born in the bottom quartile are nearly twice as
likely to remain there as adults than are white children whose parents had identical
incomes, and are four times less likely to attain the top quartile.
Ø The difference in mobility for blacks and whites persists even after controlling for
a host of parental background factors, childrens education and health, as well as
whether the household was female-headed or receiving public assistance.
Ø After controlling for a host of parental background variables, upward mobility varied
by region of origin, and is highest (in percentage terms) for those who grew up in the
South Atlantic and East South Central regions, and lowest for those raised in the West
South Central and Mountain regions.
Ø By international standards, the United States has an unusually low level of
intergenerational mobility: our parents income is highly predictive of our incomes
as adults. Intergenerational mobility in the United States is lower than in France,
Germany, Sweden, Canada, Finland, Norway and Denmark. Among high-income
countries for which comparable estimates are available, only the United Kingdom
had a lower rate of mobility than the United States.
Ø Since 1990-91, there has been an increase in the share of households who
experienced significant downward short-term mobility. The share that saw their
incomes decline by $20,000 or more (in real terms) rose from 13.0 percent in 1990-
91 to 14.8 percent in 1997-98 to 16.6 percent in 2003-04.
Ø The middle class is experiencing more insecurity of income, while the top decile is
experiencing less. From 1997-98 to 2003-04, the increase in downward short-term
mobility was driven by the experiences of middle-class households (those earning
between $34,510 and $89,300 in 2004 dollars). Households in the top quintile
saw no increase in downward short-term mobility, and households in the top decile
($122,880 and up) saw a reduction in the frequency of large negative income shocks.
Ø For the middle class, an increase in income volatility has led to an increase in the
frequency of large negative income shocks, which may be expected to translate to an
increase in financial distress.
Ø The median household was no more upwardly mobile in 2003-04, a year when GDP
grew strongly, than it was it was during the recession of 1990-91.
Ø Upward short-term mobility for those in the bottom quintile has improved since
1990-91, with no significant offsetting increase in downward short-term mobility.
Ø Households whose adult members all worked more than 40 hours per week for two
years in a row were more upwardly mobile in 1990-91 and 1997-98 than households
who worked fewer hours. Yet this was not true in 2003-04, suggesting that people
who work long hours on a consistent basis no longer appear to be able to generate
much upward mobility for their families.