It depends on your environment, and social expectations.
Where I come from, it's fucking tame.
"Eat a cock" replaced "hello" sometime ago.
In this case, all he must have meant by "shut the fuck up" is "your ideas are stupid and I have no interest in listening to them" because her ideas are stupid and no one should have to listen to these specific ideas.
Lets just repeat this fucking stupid the idea...
SECESSION!!
Traitorous, and unAmerican Linda Park wants to STEAL California.
"Sigh"
If she's just talking about it, she's a dingbat, but if Linda is donating her own money, and trying to get her friends to also donate their money to this cause, she is fucking looney tunes, and trying to start a new US Civil War.
Although...
If Linda park asked me for $5 for any cause, I'd give it to her.
Linda Park: "Hi, my friends and I are trying to speed up the extinction of various breeds of penguins because they have very racist names, could you please donate just $5 to help us buy more machetes?"