I agree with you. There was clearly a lot of well documented tension between different ethnic groups in the US, during the post Civil War Period up to the elect

I agree with you. There was clearly a lot of well documented tension between different ethnic groups in the US, during the post Civil War Period up to the elections of FDR and Kennedy, even after, especially in eastern cities. People who dismiss this as just 'bigotry and ignorance' are giving a hand-wavy explanation. There were legitimately different views and interests and cultures between the groups. There still is. If a political divide is real and one side wins, it stands to reason that side made changes that favored their group. So clearly outcomes are different.