C.E. Evans wrote:
If say Vulcan entered the Federation as a autocratic state, changes at some point into a democracy, then morphs back to a autocracy over time, what happens?
See what happens when you don't have a unified planet?
That hypothedical was
of a planet with a mono-government.
If a planet's population radically changes it's government type, does the planetary population remain a federation member?
That Bajor's caste system was discriminatory by UFP standards was obvious. Which is a pity, because it obscures whether the UFP would tolerate less discriminatory caste systems or not.
I think you can go back to Sisko's choice of words. He didn't say merely having a caste based system would in of itself prevent Bajor from becoming a federation member, he specifically said caste based discrimination