I am finding this thread really uncomfortable reading, OP. I am trying to work out the gentlest way to say what I want to say, as I have massive sympathy for the position you are in and don't want to make you feel worse.
But I do feel very uncomfortable with your approach to this issue - it feels like you are trying to normalise it, and to some extent excuse it, because that makes it easier for you personally to deal with. I haven't been on the receiving end of domestic abuse, although I have come across many long-running instances of domestic violence through work, so I can't truly understand what it feels like to be in that situation. But not having experienced it myself does not in any way negate my view that domestic abuse is wrong and should not, under any circumstances whatsoever, be tolerated or excused or minimised.
Yes, there will be women who feel utterly trapped and unable to leave their abusive partners due to fear, the remnants of love, fear of being alone and unable to cope, financial dependance, lack of family support etc. But just because it isn't as straightforward as "leave him. Oh OK then, off I go." does not mean that people should stop giving that advice when it is clear that someone is in a situation that they should not be expected to tolerate.
Of course there are situations where someone simply wants to vent about a one-off argument, rather than an abusive relationship as such. In those circumstances the advice to "leave him" is not appropriate, but to a great extent it is the responsibility of the person posting to make it clear that they are simply ranting about a one-off situation, and needing advice on how to deal with it, rather than letting people draw their own, much murkier, conclusions.
But unfortunately many, many people do post about ongoing situations where it is abundantly clear that the abuser is not going to change, possibly even that the victim is not strong enough at that time to force a change. The sad reality is that the only realistic and respsonsible advice that can be given is "leave him". And it is not as simple as that - people aren't saying "leave him" as a punishment for the abuser or as a way for the victim to "win" the situation. "Leave him" is shorthand for "get your children away from this unhealthy situation", "find yourself again", "realise that you have many other options", "don't allow yourself to be beaten up", "don't take the risk of this escalating" and most importantly "you deserve to be happy".
99.999999% of men understand fully that it is not acceptable to be anything other than loving and respectful to their partner. It's not complicated. They don't need to understand labels such as "emotional abuse", "verbal abuse" etc - they just need to have a basic understanding that if you love someone you aren't unkind to them. They don't need help to understand this. There may be underlying issues that they do need help with, but they aren't going to seek that help unless they have the basic understanding that they owe respect and love to their partner. If they don't have that understanding then nothing is going to change them except their partner leaving them, and perhaps not even that. These men do not deserve to be with someone if they are not willing to take steps to turn themselves from a danger to those close to them into a decent and supportive human being.
I am very, very uncomfortable with the tone of the opening thread. It is, to a great extent, seeking to prevent people from responding to victims of abuse in a robust and zero-tolerance manner. Unfortunately that is the only way to respond to many of these situations. Better that people overeact in relation to a non-abuse situation than that they respond too softly to a cry for help from an abused woman.