[member="Connor Harrison"] I'm going off the
actual definition of the force, you know how it penetrates and binds the galaxy together through all livings things? You know, how the force is supposed to work in mysterious ways?
If you've watched the clone wars or rebels we actually see force sensitive babies that didn't have force sensitivity in their parents. Ahsoka and Ezra are both examples of this in addition to the children who were stolen by the sith for their devious deeds, but rescued by our heroes
If the force was a biological imperative, we'd see a lot more legacies, and it would be a lot easier to totally exterminate them from the galactic population, since its supposed to be a rare occurrence.
Aside from all of that, the whole point of Rogue one is to demonstrate a star wars movie where the force isn't needed for the Rebels to win, so I doubt any of them will be force sensitive beyond Vader, who while having a large role, I imagine will be more similar to the Emperor in this scenario where he acts as an administrator, rather than a warrior. Otherwise the plans probably wouldn't be stolen, if he was personally guarding it.