I never interfered with mine except for once. That one time was when the whole flock had the previous alpha male cornered against the fence.
I simply stepped in and the others moved away giving him time to escape and them time to find something else to focus on.
This is normal breeding season behavior.
Provide hiding places that have both entrances and exits so the one needing a place to escape doesn't get trapped.
Provide additional feeding and watering stations.
Giving the dominant male a "time out" in a separate cage msy help some.