Why did the Supreme Court reverse its ruling in PLESSY v. FERGUSON? In 1896, the Supreme Court ruled in Plessy v. Ferguson that racial segregation...

This is me again; if you're answering this question, please read the following first....

1. I meant to say, "fight injustice half a world away...."

2. Sorry about misspelling "ideological."

to those who are answering this inquiry, thanks again for your time and your input.