"People on the receiving end of racism start believing in the story of their inferiority," said Thindwa, 53.
After the election, he said, his views changed.
"Now white folks are more credible," said Thindwa. "They say, 'We are not racist,' but the vote for Obama established that their claim that they have made progress is more than rhetorical."
Although it's too early to know how profound and long-lasting such effects will be, many Chicago residents say they feel transformed by Obama's win. Some spoke of a renewed hope for equity in the workplace and in schools. Others wondered aloud whether their children might break past ugly stereotypes.
"I felt like it was a great, great leap forward," said Jennifer Eubanks, 42 and white.
Just months ago, Eubanks said, she wasn't sure she could vote for a black man. But as time passed and she studied Obama's campaign and his message, she became so inspired that she did something she had never done for any other candidate: contribute money.
Eubanks grew up in south suburban Riverdale and Dolton when they were predominantly white communities. She said that, in high school, she was among 200 students bused to school in the largely black suburb of Harvey.
"I'll never forget that the cafeteria was segregated," she said. "I went through four years and never had a problem with the black students, in part because nobody ever crossed the line. There was so little interaction across races."
She said she didn't have her first real relationship with a black person until she entered the workforce, and even that was limited. She said Obama's election—during which she volunteered at a polling place—provided a lesson in how people could work together effectively and how people should be allowed to be people instead of types.
"There were black people and white people, and it was so inspiring that everybody came together for a common cause," said Eubanks, who now lives in St. Louis.
To be sure, few people said they believe Obama's victory will be enough to transform race relations in the United States radically or instantly.
"There are structural issues that need to be addressed," said Martin Sanchez-Jankowski, a professor of sociology at the University of California- Berkeley. He said it is much more difficult for people to transfer their attitude toward Obama to the people of color they encounter every day.
"That is not something that any single election will be able to make a major difference in," Sanchez-Jankowski said.
Omar McRoberts, an associate professor of sociology at the University of Chicago, said he thinks the election has provided a forum for the kinds of discussion needed to effect change.
"This election doesn't represent the erasure of race as an obstacle or as a point of tension," McRoberts said. "What it marks is the opening of a new space for serious dialogue and hard work."
Brian White began this election season believing his candidate didn't stand a chance. Obama was a black man, and there was no way this country was ready to elect him.
The win changed much about the way White, a 38-year-old white man, sees things in America. He's not ready to call race relations even, not by a long shot. But he is ready to give the country more credit.