Basically the question is, in cases such as bullying and parents who physically abuse their children is the best response to beat up the bullies and parents right back? Or are we better off trying to find more peaceful ways to solve the problem?

--The rest of this is background on why I'm posting it here and why the last one elsewhere got sour. If you don't wish to read that and just answer the question above them stop reading now--

This was a debate I originally got into in a group I'm in, but the people who supported beating up the bullies and parents (and there case, to the extent of breaking limbs) the three of them waited until all the others who would disagree were offline and them bombarded the topic with just me left. And they basically resorted to pointless insults and that "The only way to stop abuse and bullying is by beating kids up" over and over again with no proof outside of self-claimed experience or using fear.

Now, I'm not telling people this to suddenly paint anyone here who may take the solve violence with violence option as bad or evil. I'm actually explaining this because:

1) I want to give people who are actually able to give proper arguments a chance to defend this side before I dismiss is as 100% wrong

2) Because although I left the debate with them because it was clear these three specifically cared nothing for fact but rather letting out their anger on others, I'm still rather irritated and annoyed at their ignorance, cheap tactics and frankly just very poor debating skills. So this is kind of a pre-explanation/warning that if I seem to get too hostile or aggressive to those who may advocate to using violence that my reaction is not on purpose, I don't mean it and will work my best to not let such hostility slip in.

^With that said though, my general position/opinion has already been given though.
I'll go into more specifics once some responses get flowing though.