What was the most appalling United States Supreme Court decision of all time?

This page is a permanent link to the reply below and its nested replies. See all post replies »

There are many that had huge negative impacts:
The Dred Scott decision
Plessy v. Ferguson allowing segregated schooling
Citizens United
Heller v. DC on the Second Amendment
The Dobbs decision overturning Roe v. Wade

I think all of these were appalling in their own way.