Especially since the phrase "witch hunt" (as defined in most dictionaries) has a clear modern usage: to unfairly seek out and target people or groups to demonize and harm them for having beliefs (often political) deemed unpopular or dangerous (as in the McCarthy era witch hunts against communists). I don't want to lose that precise description of something insidious and menacing.
I don't think what LeeAnne experienced qualifies as a witch hunt. She's not defending her repugnant bigotry as a political /personal belief (thank god) and she admitted it was wrong and apologized, if not in a way satisfying to many of us (I'm not sure she's sorry for being caught, being 'misunderstood', being bigoted, or all three, which makes the apology murky and unstable. No clear ownership, imo). I think she endured a classic pile-on delivered by a tribe of hypocrites, some of whom are (like Brandi) about to spend months dancing with the one who brung them, Karma.
I think Brandi's video is beyond appalling, because it was consciously crafted: filming yourself mocking Asian women and their eyes, speaking in a creepy "Asian" voice, and THEN posting that to social media, and then DEFENDING having posted it to social media as "a great audition" - so disgusting. Luckily for her, Brandi gets to retreat into a private, $pa-like environment vs being sanctimoniously lectured on reality tv. Racist, heal thyself.