The same way they would react when non-butch lesbians, non-lesbian butches, or non-butch-non-lesbians get physically violent:
- By clearly indicating no offensive intentions, and no desire to fight,
- By disarming the situation if at all possible to get everyone back to their "happy place", or
- By retreating or defending their position as necessary to survive until escape is achieved, or local authorities can intervene.
How should straight men react if lesbians get physically violent?