I would argue that 'fuck off' is the same as not playing. You're not trying to engage with them. You're just preemptively ending any attempt by them to get a foot in the door by shoving a (rhetorical) shotgun into their face.
It's certainly more satisfying, I won't lie.
No. It is not the same as not playing. Unless you mean "not playing the SJW cult game of organized insane" in which case correct.
Which was what I, the OP of that statement, meant. You win by refusing to play their game (as should be obvious from my comments in other threads where I said you need to build your RPG company to specifically resist the influence of SJWs).
While "Frack you!" can be satisfying, they can just claim you're a hateful bigot who doesn't care... its not as obvious you're rejecting their premise and they're free to assign malign motives to you.
If some SJW came screaming at me for daring to include an Asian-influenced region in my book ("Appropriation!!! REEE!!! REE!!!") my reply would be to calmly state "I reject that appreciating different cultures can be racist."
Not only do you reject them, you also now require them to justify that appreciating other cultures isn't the good you believe it to be.
They'll absolutely do that... no doubt, but you aren't trying to persuade them... just make their REEEing look more ridiculous to anyone else observing.
Don't play their games... pretend they don't exist and didn't even speak in public spaces (that ticks them off even worse than a reaction) and if you must answer, refuse to accept the basic premise of their claims.