Okay, I can see how you got that from my post. I was a bit hyperbolic in my original post, and I apologize.
I’m not REALLY making a moral equivalence argument or saying anything about comparing the horrors of slavery to work… I’m saying getting rid of slavery was easier to enact because there was an alternative system that happened to be ultimately profitable for the rich at the same time. Yes, wars have been fought to stop abolition, but at the end of the day, after slavery was abolished, the rich found a way to stay rich almost everywhere - abolition came at very little real change to the wealth structure of society. They had a supply of labor to exploit for profit during slavery, and they had one after. The fact is that the moral and financial interests both aligned on making abolition happen - it wasn’t caused by pure strength of willpower. And yes, the system we have now is MUCH MUCH better than true slavery, but it’s still a stretch to use the current system as a beacon of hope.
On climate change the moral and financial interests are NOT aligned in a clear way. There are always still going to be financial incentives to screw the climate for extra money. By comparison, if slavery were somehow legal again TODAY, it’s not clear it would be profitable for anybody to actually do it. That difference will make climate goals harder to enact.