The word terrorism has a nebulous meaning. Historically, it could refer to 19th anarchist bombers blowing up bourgeois cafés and police stations, which arguably nobody in the general population fears (and back in the days of the propaganda of the deed, had in fact a lot of popular support).
Or it can mean takfirist islam like Daech or Al Qaeda, considering the general population is not pure enough and mass assassinations are necessary to open its eyes... which is scary as fuck for anyone and everyone.
In that sense, studying the balance of power is important in order to label (or not) a movement a terrorist. Even when i disagree with its method, i will never label a resistance movement "terrorists", because that's precisely what the nazis did and what their ideological followers are still doing today in regards to palestinian/kurdish/indigenous resistance, anarchists and eco-warriors defending land against industry, racial minority groups mounting armed self-defense groups, etc..
If I were a Nazi in Nazi Germany, then very much the former.
Freedom fighters are the irregular military forces I support, terrorists are those that I don't.
And, frankly, I'm ok with that.
One of the scariest things happening right now in a post-intellectual America is that words don’t have meaning anymore. It’s all just “good” or “bad”, “our team” or “your team”. It’s how a group that does manifestly unpatriotic things gets by calling themselves patriots with a straight face.
I’m not sure calling abusive criminals “terrorists” does a single good thing.
If you want domestics to go to jail for 50 years, change the statutes so that there's mandatory minimums of 50 years in prison. Or life, who cares? The chickenshit stuff of larding lifelong restrictions on convicts related to domestic abuse results in the unending harrying of poor bums with complex post-sentencing requirements involving guns, cars, etc. that keeps lawyers busy, cops doing make-work, and poor people poor.
Adding terrorism nonsense to the mix will just encourage the FBI to employ thousands of CIs to induce working class couples to cheat on one another with their catfished agents to get one or both to commit 'terrorism' to lock them up.
(edit: judging by the downvotes, a decent amount of sympathy on HN for those engaged in domestic violence. Noted).