I don't know why you are saying this, because all I did was say we should stop slavery. Whether or not we protect copyright or whatever, we definitely should stop slavery. Taking down a post isn't stopping slavery, it's insulating elite Westerners like myself from being aware that slavery is actually happening.
Up until today I was aware of piratebay, copyright issues, etc because it has impacted my life. I was unaware that in some places it was still accepted practice to not only enslave people but to publicly post about it. I imagine a lot of the people who work at the social media companies are similar to myself in that respect.