Reminder: Do not call, text, or mention harrassing someone in real life. Do not encourage it. Do not talk about killing or using violence against anyone, or engaging in any criminal behavior. If it is not an obvious joke even when taken out of context, don't post it.
There ain't no good guy
There ain't no bad guy
There's only you and me
And we just disagree
Tell her the truth; your feelings have run their course and you will be moving on but wish her the best. Acting the dick to get her to break up with you is a time suck and cowardly.
Don't listen to this bullshit. Cut a loud fart. Yell at her for having bad opinions and being a stupid cunt. Avoid the discussion completely. Talk politics.