To speak of the Cuban system, it’s important to recognize that your skepticism almost certainly originates in perceptions formed by Western media. The structure itself is honest, it’s what they literally have. Whether or not this is sufficient, or working well, is a separate argument, but not the one you made. Your argument seemed to be that we can’t even trust the Cuban government to report on its own legal structures, which is as silly as saying going and looking up US legal code could be fake because we don’t trust the US government.

What reasoning did you have to distrust the Cuban government on its own structures? What source would have been better and thus more reliable for you? No source is free from bias, but things like legal structures tend to be fairly straightforward. Now, if I were linking an article where the Cuban government was talking about how its democratic structure is the best in the world, that leans heavily into opinionated territory and the bias shines through more clearly. However, again, we were talking about the literal structure, which is evidently democratic.