It is worth noting that the US marshals seen in the painting protecting the little girl were sent by REPUBLICAN president Eisenhower. I hope race-baiters like Sharpton, etc. got that. REPUBLICAN president Eisenhower.
In Rockwell's day, teachers supported and were expected to support American values - and in turn were respected.
And, history tells us that proportionally more Republicans voted for the Civil Rights Act of 1964 than did Democrats.
Lost to history is the key role played by Republican senator Everett Dirksen, in breaking the filibuster on that legislation as it worked its way through Congress.
I never understand how the mythology grew up, that Democrats were all in favor of civil rights, and Republicans opposed. Yet that mythology set up a trend where even today, blacks vote 90+% for Democrat candidates for all offices, from president on down. If they are voting that way to reward Democrats for giving them equal rights under the law, their voting that way is a mistake.