Of which neither she nor you even read it, did you? Did you? You didn't, so shut up and read it then apologize for being an ignorant and lazy poster.
Here is that legal citation that you and the author didn't read but quote.
In the event of an oversold flight, every carrier shall ensure that the smallest practicable number of persons holding confirmed reserved space on that flight are denied boarding involuntarily.
First rule of holes applies to you here. Also, you still haven't answered what aspect of Rule 21 applied here, as I asked on another thread.
Oh, and I would stop the insults as well, given how many posters have shown how off your points are. Your ignorance appears to be deliberate, given how you attempted to apply a section used to deny boarding to justify removing someone who was already boarded, on a flight that was not oversold.