Her husband also got disconnected. A lot of French nobles who asked and collaborated with their foreign relatives to wage war on their people to repress them also got disconnected.
Sure and so did a bunch of innocent people as well as other revolutionaries, while other aristocrats survived. The killings were at times quite indiscriminate.
My point was that Marie Antoinette wasn't particularly more detached than the aristocracy in general, that she bore almost no personal blame for the catastrophic situation before the revolution and that she was hated basically from the moment she came to France due largely to anti-Austrian sentiment. The vitriol to which she was subjected during the revolution was not exactly proportional to anything grounded in facts.