One of the great unannounced projects of the 20th century was the abolition of class. The United States ignored it in the hope that it would go away; that worked every bit as well with class as it did with the People's Republic of China. The USSR tried to smash it; that was just as successful, plus millions of deaths.
So it seems we are stuck with class, and we should think about making it work better. One answer is to cut the ends of the curve: make the uppers less powerful and the lowers less miserable. The other is class mobility, enabling lowers to reach the higher level they belong at. It's easy to pick on the ways in which lower-class people with the ability to rise are pulled down, by a culture of poverty that says, "Don't get ahead of yourself" (meaning "Don't get ahead of us") and the collectivists (many of them not poor) who turn it into an ideology.
But of course the real problem is the way they are pushed down, for irrelevant reasons like race or sex, by the classist assumption that all those born into the lower classes belong there, and by plain stupidity.
fjm reports
a particularly gross fail from the UK.