Blacks Lose Better Jobs Faster As Middle-Class Work Drops
Unemployment among blacks is rising at faster pace than at any time since mid-1970's, and jobs lost are mostly in manufacturing, where pay for blacks has historically been higher than in other fields; nearly 2.6 million jobs have disappeared in past 28 months, nearly 90 percent in manufacturing; jobless blacks are continuing to look for work, but types of jobs lost have diminished their standing in middle class; Michael Barnes of AFL-CIO notes that many without high school diplomas were hired in boom years and earned enough to rent apartments, buy cars and establish themselves, until recent layoffs (M)