Right-wing appropriation of terms that have become more generally-used are fine, if the case is clearly about a right-wing appropriation becoming the dominant meaning (which are examples I'm asking for) and not just a general change of the meaning that is just also happily used by the right but (which is what I see all now-pejorative terms that were initially self-identifying labels on the woke subset of politics).
I haven't seen the BBC example, but wasn't that simply a sloppy definition rather than an actual right-wing appropriation ?
I'm afraid that I simply don't see "communist" being used as a general pejorative. And even when it's the case, it's usually more about the, to say the least, pretty terrible track record of self-styled communist regimes than anything coming from the right.
To be blunt, I simply have a hard time relating to this whole vaguely conspiracy-like "the right dictate the common distortion of the language". From my perception, the pejorative tones that many words got are largely self-inflicted and not caused by any sort of deliberate smear campaign that somehow work only for one half of the political compass.
"SJW" and "woke", being self-label-turned-pejorative, look mainly due to the content of the political subset itself that repels a lot of people, and the very habits of calling "bigot" anyone who doesn't agree with said politics. This thread is in fact a pretty good example of the typical behaviour that lead to such perception, while ironically trying to do the opposite.