I am not Jewish so I find it a bit difficult to answer this one.
Like a lot of us with a diverse circle of friends and acquaintances I do know those of the Jewish faith, also Pakistani, Indian, Italian etc. That comes with the territory when you live in a multi cultural part of the country.
I have spoken about the word Yid before during a discussion I was having with a group of friends about the use of words such as Yid, Paki, Chinky. We all agreed that it is the way in which the words were used as being the issue, not the words themselves. In fact I distinctly remember my Jewish friends being the least offended as they happily said they were 'proud to be Yiddish' and the word Yid is used within the Jewish community.
Is it not therefore the case if the Tottenham Fans have no issue chanting the word about themselves, in fact feel rather proud about their religion, why should we declare it to be an offensive term? If the word was used in say an argument and somebody said "You Yiddish git" Then it is being used by the aggressor in a way to try and belittle the other person, but even then is it really offensive.
It is quite normal in our language to shorten words e.g umbrella becomes brolly, horse is a nag, policeman a bobby. Have we created a disproportionate view of the spoken word and created a problem that was never intended to be neither racial nor aggressive and words that are used by and within the Jewish, Pakistani communities by their own people.
It's like being of Yiddish, Pakistani, Chinese origin is somehow not acceptable or seen to be some sort of class underdog and that thought is obviously utter rubbish but I do worry the continued view that calling somebody any of those names is a derogatory term it has done some damage to the communities it is trying to protect.
In other words it's not the word that is the problem purely the way it is used. It would appear to me to be the FA that has started the ball rolling, no pun intended, on this one and maybe they should have spoken to Tottenham Football Club and it's fans first. If they declared they do feel that the word yid is offensive then I would whole heartedly accept that is what it is.