He might eventually. If Alexi would stop essentially fucking with him about it, and he could understand everything, then he might be able to deal better. Right now, he sees no way that the slavery could end so quickly, even if there is an antidote, and no reason why Alexi would be the one to end something that allows him to live in the lap of luxury. 

I mean, if a guy kidnapped you, handcuffed you to a bed, deprived you of food, water, medicine that you need to take every day to not get sick, and started talking about some big plan to free all the slaves of the world, would you believe anything he had to say? Right now his actions are speaking louder than his words, and they aren't telling a good picture.