So your point is that you can’t call out an instance of slavery unless you call them all out? That doesn’t make sense to me. You should be able to highlight an issue without someone retorting “what about X?”, which is literal whataboutism.

Everybody is a hypocrite on almost every issue. Take a major issue like climate change. Almost every human in the U.S. and Europe has massively large carbon footprints. Does that mean Americans or Europeans can’t care about climate change? We’re not ideal beings working in an ideal system. We’re flawed being in a flawed system trying to make things a little better.