Two things, 1) whether they have a $700 budget or $700B budget, the DoD executes the orders of elected civilians.
2) Don't you still want to make it as expensive as humanly possible for other countries to get the plans to those weapons? Even if you live in Paraguay, rouge states with nuclear weapons increase the cost of international economic collaboration and thus decrease your quality of life. Securing the US Government's weapons information is in your best interest.
> How can you be so sure that I’d only be helping the good side of the DoD?
I answered this by asserting your premise, the DoD has a good side, is unnecessary. I further allowed for the possibility you're not even American.
> Do I [end up defending the right of more malicious actors to acquire technology from the US below cost through low-cost, high-yield hacking]?
I answered this by posing the leading counter-question, "Don't you still want to make it as expensive as humanly possible for other countries to get the plans to those weapons?" And that appear to be the fairly strong position it is, considering I rejected your requirement of there being anything good about the DoD, and further rejected any implication that you're even American.
The point is this: if I help them, how can I ensure that this help goes towards things like preventing other countries from obtaining nuclear weapons, and not blowing up weddings?