The wikipedia page on superdeterminism starts out:
"In quantum mechanics, superdeterminism is a hypothetical class of theories that evade Bell's theorem by virtue of being completely deterministic"
Logically, something that is "completely deterministic" would have to be...deterministic, no? Does superdeterminism go to 11?
To continue with the coin flip analogy, consider a classical world where a coin flip is perfectly deterministic, given the initial conditions. In the usual way we think about determinism, it's still possible to test whether a coin is fair. Just flip it a bunch of times, a little differently each time, and see if you get a ratio close to 50/50. That's standard science.
In the superdeterministic view, you don't admit this kind of explanation. Instead you say that whatever outcome happened was determined by the initial conditions of the entire universe. If you get all heads, you can't say anything about the coin -- we merely conclude that your hands were predetermined to give it the kinds of initial conditions that would have led to that outcome.
Now imagine repeating an explanation like this for every experiment ever performed. It's on the level of answering "God did it" to every question. We don't do that in science because it kind of defeats the whole point.
And saying that it is random with "God rolled a dice" isn't? The entire universe could have used a fixed random seed and our experiments and thoughts would have been exactly the same for all we know, determinism doesn't have the effects you talk about. We perform trials and do statistics when we don't know the exact workings of things, not because we believe that the thing is inherently random.
> To continue with the coin flip analogy, consider a classical world where a coin flip is perfectly deterministic, given the initial conditions. In the usual way we think about determinism, it's still possible to test whether a coin is fair. Just flip it a bunch of times, a little differently each time, and see if you get a ratio close to 50/50. That's standard science.
Every person understanding determinism will assert if you can repeat the same conditions of a previous coin flip, you will get the same outcome of the previous coin flip (for the next flip) and until the conditions are altered to make it so. The "conditions" being all the "external forces" acting upon the coin as it flips and lands.
We all understand a coin flip is 50/50 for us, since we're not perfect machines at replication. We would need to be able to analysis how to flip a coin the same as a previous flip and manipulate the environment of the coin flip to the previous flip if required.
The foregoing understanding is beneficial for scientists when it comes to experimentation. I understand why people can assume "God/Nature did it" would be worrisome. I still think you're making a big leap with what you originally asserted.