The March 20 People's World luncheon honoring workers in the struggle was held at the Clean Carwash Workers Center in South Central Los Angeles.
Walmart suddenly closed five stores giving its employees only a few hours notice and laying off an estimated 2,200 workers.
Walmart has built a vast, undisclosed network of 78 subsidiaries and branches in 15 overseas tax havens.
Steffen stressed "unity and militancy at the bargaining table" and his commitment to the campaign against big business and big givers' monetary dominance in politics.
"It is no accident that they shut down our store, which has been a one of the most successful centers for organizing."
"We need a robust tax on Wall Street trading to provide the revenue needed to invest in education, health and communities."
Walmart announced today it was giving its lowest-wage workers a raise to at least $9 an hour by April and $10 an hour by 2016.
"Don't be afraid, come out and fight for your rights, see all these people here. This gives me hope."
As Black Friday marked the start of this year's shopping season, unionists reflected on what they would get workers this year if they could get them anything in the world.
McCarthyism describes the action Joseph McCarthy took in attacking political opponents: anyone who supported civil rights, labor and other progressive causes.