>>5687512Note how the sculpted joint is resting flush against the curvature of the sculpt? It's straight, both of them. The Arms rotate above the mid-forearm gloves as well, so straightening them isn't a problem when bunching the arms together. It's not as good as it would be if it had a butterfly joint, but it perfectly emulates the OP image.
Like I said, the figure is greater than your autism, but you're certainly giving it a run for its money.