Were they reacting to their voting rights being taken away, or reacting to having been led to believe that their voting rights were taken away? I have seen no credible evidence that they were disenfranchised.
Well, we can't investigate because the ballots have already been shredded and the voting machines have already been re-imaged. Despite there being laws on the books that cover one, if not both of those cases, making it illegal to do those things.
Except, their voting rights were not taken away. They voted for a candidate that received fewer votes than his opponent. They didn't like the results. They were fed deliberate lies and baseless theories, and acted upon bad intelligence.
That seems beside the point though. Nation-states could well coopt/dupe unwitting agents to do their deeds for them. Not necessarily saying that's what happened here, just making a point.