At some people you can secede to an individual size of 1, at which point you can only tyrannize yourself. But it's a valid point, you're only mitigating not eliminating tyranny of the majority by picking which democracy you choose to be a part of. It is harder to tyrannize people with options, though, and much easier if it's either follow the company line or be massacred.
The Somalis basically have this system, which has been more successful than their geographic attempts at democracy, where you can essentially go under an entirely different legal system even in the exact same geographic spot by accepting a sponsor of another tribe, or possibly by marrying ('xeer'), or if you so choose you can secede from the whole thing and make your own tribe and take the risks that come with that.
It's really weird describe secession as even "mitigating" tyranny of the majority when your example is the Confederacy. The whole point of seceding was to try to ensure they could continue the white majority's tyranny over their black slaves. There's nothing inherently better about being ruled by a smaller state.
I said it was an implied right up until the Civil War, not that the Confederacy was the shining example on a hill (in fact the confederates would no doubt deny the slaves themselves the right of secession). You've pointed out to one example of secession that might be worse for black people, ignoring all the while in my relative comment the example I used was of the black people themselves seceding from the tyrannical state (Haiti).
Damning secession because it's not perfect cuz muh Confederacy is just intellectually dishonest. No political system is perfect, having the option is better than nothing. I have never implied that the right of secession should stop at the size of a slave state and the slaves could not themselves secede which they have in fact successfully done.
>mitigating not eliminating tyranny of the majority by picking which democracy you choose to be a part of.
I said secession mitigates tyranny of the majority.
I don't think you understand what mitigate means. It doesn't mean the risk is eliminated. Quite often a mitigation effort will do the opposite (i.e. vaccines mitigate risk of death but some patient has allergic reaction to vaccine and patient dies).
Arguably had black people been able to secede from the union AND the confederacy they might have been better off, but of course, both the union and the confederates would likely have attacked them in that case, because it's not as if white people didn't want to tyrannize blacks even in the north, they just didn't do it with the mechanism of slavery (arguably because slavery was just becoming bad economics in the industrial north and attacking slavery was more of a way to get one up on the south than to help black people that hardly had the rights of whites in the North).
The Somalis basically have this system, which has been more successful than their geographic attempts at democracy, where you can essentially go under an entirely different legal system even in the exact same geographic spot by accepting a sponsor of another tribe, or possibly by marrying ('xeer'), or if you so choose you can secede from the whole thing and make your own tribe and take the risks that come with that.