You'd be surprised how many calls for subversion there were in the 70's and 80's!!! Some calls were valid and some not. I do not believe, however, that anyone accused the critics of seeking to de-legitimise the United Kingdom because the majority of the UK population could ever conceive that such a de-legitimisation could ever occur! (a marked difference to Israeli's who despite nuclear warheads and the support of the west still perceive themselves as the David vs some sort of Goliath) Unlike the British government, however, non of the Israeli political class seem inclined to solve the core issue - the right of the Palestinians to a viable, independent state - thereby allowing criticism to escalate to critical levels. The occupation came before this 'modern' wave of criticism and not the other way round!
U.S. Republican John Kasich says he is suspending his presidential campaign (Reuters)
from the article: Response / On 'exorcising' Israel bashers from the Jewish mainstream