With the greatest of respect, she wasn't interrogated. She was asked a question which she blocked.
You seem to be joining her in pointing out something when nothing happened. She chose to find it offensive. As are you.
These occasions thrown at the palace are an exercise in people going round the room and chatting to people they do not know. People like Lady Hussey are there to make conversation because the main royals can't possibly get to everyone at a function.
Whilst I agree that Dr Ranj was 100% right to flag the disgusting comment by the Pimlico Plumbers guy at the curry awards, the other is just an exercise in "I don't like these people, I'm going to find this offensive".
She should not have attended after what she said regards the Royals. You've strangely ignored that point.
Also, my DH is of GRT descent. The racism towards that community is disgusting, and not hidden at all. It's all over Facebook. And when flagged Facebook doesn't recognise it's racism and allows it to stand. That is disgraceful but it seems to be the marker of bigotry because although they can't be openly racist against BAME groups, they can openly and unashamedly voice nasty threats and vile slurs against travellers and get away with it.
In my local area, a local Tory councillor admins a community Facebook group. She was actively encouraging a group of local males to go and be violent to the travellers on an encampment, including liking comments suggesting setting fire to caravans whilst the occupant's slept. I reported to Facebook who did nothing. I reported to the police who did nothing and blamed the travellers. I then openly said how disgusting I found it.
It resulted in this woman threatening to use her position to make a false complaint about me to social services. Or to have me sectioned. And I'd not even disclosed about DH having come from a traveller family. I was abused, had threats, all of which Facebook declined to deal with. I took to the Tory party who didn't respond.
So yes, I do agree that racism is real. Some is quickly dealt with. But not for travellers.