By Deon Osborne Black Wall Street Times The 1963 March on Washington for Jobs and Freedom was supposed to end employee discrimination in the economy, but a new Labor Day study from Pew Research Center shows the issues that burdened Black workers in 1963 continue to hinder their economic mobility today. Over 260 years after the end of slavery, the new poll from Pew Research Center shows a majority of the 21 million Black American workers still feel the chains of Jim Crow throughout the entire economy system. Black Americans remain more likely to work in lower-paying jobs that require…