It's as simple as this. If Acosta was required by policy to hand over the mic, and he didn't, he was wrong. But if he was assaulted, he was in the right for protecting himself.
Even if he was wrong about handing over the mic, the violence of the woman was wrong.
Even if Acosta was fired for his actions, his act of self protection is part of universal law, and especially in the U.S.
Wanna play politics? Go ahead. But Acosta was right in protecting himself.
If Acosta was wrong in not handing over the mic, the woman was wrong in trying to take it from him by force.
There is appropriate policy in place for both Acosta and the woman... a way to handle the situation peacefully.
This whole thing is a political tug of war.
This is false equivalency horse shit people always trot out when shit like this happens, allowing this double standard to continue.
Taking some thing from some one's hand is not force (unless of course you have no rights to said property). Even if it was, a reasonable amount of force used to obtain your own property from some one with no rights to it is not a crime.
Also it should be noted the act began with Accostas resistance to the legal act of taking the microphone back, not the other way around. The first to initiate illegal force is quite relevant to any case of assault.