You are right; perhaps they have changed dramatically in the last 30 years. I would not bet on it though.
That may just be a meme you have in your head expressing itself in public.
ALL public statements - including the one you just made about the one I just made - are memes you have in your head expressing themselves in public. There is no 'just' about it.
Not addressing the argument and attacking the arguer...hmmm ad h.....m.
I am not attempting to address their argument, because they are
not making an argument in this thread 
I am addressing the arguments of the other contributors to this thread; and I am pointing out to those people that they are arguing about the statements of a powerless group of self-promoting morons.
Of course, they are free to do so; But they should be aware that the NUS is not an organisation that has any influence in this issue. They are a powerless group of wannabes with a history of making statements that are unrelated to their actual remit; and they do this because their leadership is made up of people who think far more of their own opinions than is justified by reality.
They stated their position and I don't particularly agree with it but I am not labeling them for their take on the issue.
I am not labelling them for their take on the issue; I am describing them for the benefit of those who are unfamiliar with who the NUS are, and what their history is in such cases. If you mistake them for an influential lobby group, or for people who are taken seriously by anyone except themselves, then you are being misled.
In fact, my position is closer to theirs than yours...
I have not expressed a position on the question of whether Israel is or is not worse than ISIS, so you cannot possibly know that. You are projecting.
I don't believe that it is a valuable or valid comparison to make; I have no opinion on the matter one way or another. I DO however know what the NUS is supposed to do; and what the organisation is like; and the sort of people who are attracted to leadership roles in that organisation, and I am comfortable in my assessment that their opinion in such matters as to which international organisations to censure or to support is valueless. You might as well discuss the opinion expressed by
The Onion, albeit with the minor difference that the writers for
The Onion know that they are not to be taken seriously.
I feel ISIS is reactionary and its movement is fueled by U.S. actions in the area. They fight us with weapons from our factories. They (ISIS) are a backward people whose modern knowledge has been artificially controlled by colonial and neo liberal overlords and when they shake loose from the foreign domination, they do not have a deep file of policies on governance or even morals at their disposal. They do terrible things because they really do not know to do anything else. Western and eastern religionists both have a religious cookbook that contains long chapters on retribution and revenge. That is what you are seeing when they cut off heads. That is also what you are seeing when IDF drops WP on a U.N. school. I think what the students were trying to say was that it should be easier for Israel to cease and desist from its predations than for ISIS and that in not ceasing when they could, they are "worse." Actually the situation is deplorable and both groups owe their members a retreat from violence...especially things like burning school children to death with WP and cutting off heads.
Both groups do lots of harmful things. Neither group will resile from those things due to any action or statement made by the NUS; and there is no more sense in comparing the two groups to determine which is 'worse' than there is in arguing who would win in a fight between Godzilla and King Kong.