I think the argument they make is that quantum randomness doesn't have any way of influencing our choices, the scales are too different. I disagree, I think quantum randomness is free will, and there's some sort of quantum amplifier, for lack of a better word, that bridges the gap between particle interactions and consciousness. But since there is no way to prove or disprove such a thing, since it is by definition indistinguishable from chance, it's basically naval gazing...

Of the 2 compatible explanations, I really like the many worlds theory over hidden variables. Many worlds explains this unexplainable randomness, the probabilistic nature of subatomic particle movements, by saying all possible movements happen…. The probabilities just indicate the likelihood that our reality is the one that movement X happens in.