Who throws the dice for you?

[Heywood]

So, it seems you're asking where does the randomness of QM come from... am I right?

Have you tried reading about it, before coming here to ask us? Some of us may know about it, but most will have no in depth knowledge, nor care too much about it, hence the yawns you got.
If you do care, then please, feel free to indulge your curiosity. Here's a few links for starters:
http://en.wikipedia.org/wiki/Quantum_chromodynamics

http://en.wikipedia.org/wiki/Standard_Model

Quantum mechanics says nothing about where randomness comes from. In my own experience randomness is generated by a mechanisms which contains variables which are hidden from me.

But this does not appear to be the case with regard to quantum mechanics because Bell's theorem tells us there are no local hidden variables.

I think this presents a problem for atheists because they are forced to accept a view that true randomness isn't generated...it just is.

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The simple answer is 'we don't know'. Physicists don't tell us that quantum level events are 'fundamentally random', they tell us that they haven't identified any control mechanisms therefore there's an appearance of randomness. So your point on randomness is badly formed and meaningless; I don't know you well enough to suggest if it's deliberately so...

This is wrong.

Bell's theorem tells us there are no local hidden variables. This two minute video explains to a certain extent.