So, I'm going down an ADD rabbit hole on this one, but I don't actually care, this is fascinating to me..
Did you get who the Cardassians were?
They're not just any authoritarian society, are they? They're not the Klingons, they don't value war for the sake of war. They don't oppose the federation because of some social Darwinist belief in the inherent value of war. The Cardassians have beliefs, they have an ideology. They have an ideology which is diametrically opposed to the ideology of the federation in a way that is very consistently characterized. The Cardassian interrogator in the episode you are referring to brings his child into the room where he tortures people, and to prevent her empathizing with Picard he tells her a story about how humans aren't like them, that they don't love their children in the same way Cardassians do. Families come up constantly in the depictions of Cardassian society, their propaganda constantly references their families. Everything they do is framed as being for the protection and preservation of their society, their way of life, their families, against those who are not like them.
Have you figured it out yet?
The Cardassians are fascists. They're not generic authoritarians or bad people in space, they're specifically fascists. They don't torture Picard because they want him to stop saying mean things about their lights on Twitter, they do it because they see him as an inferior, as merely a tool to be used, because the idea that someone different from than can be their equal in personhood is the negation of everything they believe. The number of lights does not matter, there is no purpose to them in making Picard believe that there are 5 lights. What matters is breaking his will and eradicating his individual personhood.
That's why using that metaphor in this context is cringe, it shows you missed something very important and, more importantly, it indicates a warped sense of perspective. You haven't been tortured by a fascist regime. Comparing your own experience to something so extreme, even if it's fictional, is really very silly.