@poly there is zero chance she would have to leave the UK. Zero. Just like me in France or my Fremch wife in the UK. Zero.
I never implied there was any realistic prospect of this (but certainly many EU nationals are worried it will, or that at least they’ll be expected to jump through unreasonable bureaucracy or applications to be here).
You were the one that said:
…they would only be asked to leave if…
which seems to suggest that you think there IS a chance. Perhaps its so unlikely there is no plan for what we do if that happens either?