Lore: where does OW intervene

Say, imagine a community of omnics lives with its own system of civilitation in a territory, and eventually the neighbouring, bigger territory sets it under siege, using disproportionate measures of violence and oppression, which gradually escalate, with the bigger territory using military-grade resources vs the smaller community’s civilian-grade resources, and a tipping point is about to be reached in which a massacre is to be performed and most omnic protesters are to be wiped.

Would Overwatch intervene?