throwing dice is not random expecially in the context that would prove your case.. it could actually be used to hurt your case. Although we cannot yet easily calculate what a person rolling dice would hit, we know that it would be possible to do because the laws of physics can predict the outcome...but quantum mechanics doesn't have much to do with this.

random number generatiors are also not random

there are not many things without determined outcomes, and quantum mechanics may just be another thing that is not random but we cannot find a deffinite pattern in yet.

it's reeally a shame that one tiny particle winding up in an actually random location could be the only thing keeping the universe from having one definable equation... but I'm sure there is probbly more randomness in the universe if any.