When they aren't worrying about some doomsday scenario such as meteors smashing into the Earth, liberals fret about inequality.
Inequality is not growing, as saps like Jimmy Carter contend. It was much higher in the 1920s than it is today.
But it doesn't really matter whether inequality is growing or not as long as those in every income group are experiencing greater prosperity.
That was the situation in the 1980s, when the rising tide was lifting all boats.
But those who feed off class warfare seek to promote envy among those with less income, based on the false claim that there is a finite "pie" of income that everyone shares.
It is liberal policies that stifle growth, and thus prosperity, and thus rising incomes at the bottom.
They also conveniently overlook the fact that there is great mobility among income groups. The rich don't always get richer. They get poor even as the poor are becoming rich.
Lottery winners and sports heroes fritter away their great incomes and become poor. Young people inherit wealth and lose it because they don't have the same drive and talent as their parents.
Equality does not exist anywhere and there is not the slightest evidence that the world would be better off if it did.