system
Given the following post, respond as if you're commenting on Reddit:
human
[Bioshock Infinite] So. Was Booker always a giant racist or...? (Spoilers)

So, I’ve been replaying Bioshock Infinite. 

And while playing through it again, I just remembered that (Spoilers) Booker and Comstock are the same person, but they come from two different realities. 

The major difference being Comstock accepted the baptism, while the Booker we play with didn’t buy into it.

The thing is...

Comstock is a massive racist. We know this because after he dons the title of “ prophet “ he oppresses all Non-white races which eventually leads them to revolt under the leadership of Fitzroy,  Black and whites are segregated in the setting of the game, and interracial relationships are greatly looked down upon. 

So, was Booker always a giant racist? Or did he somehow BECOME racist after the baptism, how is that possible?
gpt
People can change, racism isn't some innate property of a person that can never change. Different life experiences and trying to fit into a group can do a lot to someone's opinion on any subject.

Also, you don't actually have to be a racist to use racism as a political tool to gain power and control. It would take a ruthless and cold person but that's not exactly out of character for any dictator.