As i understood it he is only immune d1/n1, those kind of things exist as i had a character this very same way.
Mate, someone (midnight) came out and said yama is neutral pro town(therefore not exactly town) just because lyncher's targets are most alway town doesnt mean this one is, especially when another player corroborates it. And yes, im willing to sac a neutral pro town over a neutrall willing to help rn.
Town wins when all threats to it die, we can have TAC help us get scum, then onces its done lynch yamato and we all win.