Fighting slavery
Slavery is difficult to eradicate because the slaveowners strongly resist any change in their situation. In the US, you’ll recall, we actually had to have a bloody war to stomp out slavery, and even then to this day many in the South long for those days—whites, of course. That is, they long for those days but deny it’s because of slavery. It’s really because of… what, exactly? The advanced plumbing then available? The conveniences of life in those days?
No, slavery is an evil institution because once it takes root the slaveowners will do anything, including war, to keep owning slaves. Very ugly.
